21341460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:111

約数の個数: 192

約数和(自身を含む): 74995200

約数和(自身を除く): 53653740

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 49, 51, 60, 61, 68, 70, 84, 85, 98, 102, 105, 119, 122, 140, 147, 170, 183, 196, 204, 210, 238, 244, 245, 255, 294, 305, 340, 343, 357, 366, 420, 427, 476, 490, 510, 588, 595, 610, 686, 714, 732, 735, 833, 854, 915, 980, 1020, 1029, 1037, 1190, 1220, 1281, 1372, 1428, 1470, 1666, 1708, 1715, 1785, 1830, 2058, 2074, 2135, 2380, 2499, 2562, 2940, 2989, 3111, 3332, 3430, 3570, 3660, 4116, 4148, 4165, 4270, 4998, 5124, 5145, 5185, 5831, 5978, 6222, 6405, 6860, 7140, 7259, 8330, 8540, 8967, 9996, 10290, 10370, 11662, 11956, 12444, 12495, 12810, 14518, 14945, 15555, 16660, 17493, 17934, 20580, 20740, 20923, 21777, 23324, 24990, 25620, 29036, 29155, 29890, 31110, 34986, 35868, 36295, 41846, 43554, 44835, 49980, 50813, 58310, 59780, 62220, 62769, 69972, 72590, 83692, 87108, 87465, 89670, 101626, 104615, 108885, 116620, 125538, 145180, 152439, 174930, 179340, 203252, 209230, 217770, 251076, 254065, 304878, 313845, 349860, 355691, 418460, 435540, 508130, 609756, 627690, 711382, 762195, 1016260, 1067073, 1255380, 1422764, 1524390, 1778455, 2134146, 3048780, 3556910, 4268292, 5335365, 7113820, 10670730, 21341460]

約数ペア:

[(1, 21341460), (2, 10670730), (3, 7113820), (4, 5335365), (5, 4268292), (6, 3556910), (7, 3048780), (10, 2134146), (12, 1778455), (14, 1524390), (15, 1422764), (17, 1255380), (20, 1067073), (21, 1016260), (28, 762195), (30, 711382), (34, 627690), (35, 609756), (42, 508130), (49, 435540), (51, 418460), (60, 355691), (61, 349860), (68, 313845), (70, 304878), (84, 254065), (85, 251076), (98, 217770), (102, 209230), (105, 203252), (119, 179340), (122, 174930), (140, 152439), (147, 145180), (170, 125538), (183, 116620), (196, 108885), (204, 104615), (210, 101626), (238, 89670), (244, 87465), (245, 87108), (255, 83692), (294, 72590), (305, 69972), (340, 62769), (343, 62220), (357, 59780), (366, 58310), (420, 50813), (427, 49980), (476, 44835), (490, 43554), (510, 41846), (588, 36295), (595, 35868), (610, 34986), (686, 31110), (714, 29890), (732, 29155), (735, 29036), (833, 25620), (854, 24990), (915, 23324), (980, 21777), (1020, 20923), (1029, 20740), (1037, 20580), (1190, 17934), (1220, 17493), (1281, 16660), (1372, 15555), (1428, 14945), (1470, 14518), (1666, 12810), (1708, 12495), (1715, 12444), (1785, 11956), (1830, 11662), (2058, 10370), (2074, 10290), (2135, 9996), (2380, 8967), (2499, 8540), (2562, 8330), (2940, 7259), (2989, 7140), (3111, 6860), (3332, 6405), (3430, 6222), (3570, 5978), (3660, 5831), (4116, 5185), (4148, 5145), (4165, 5124), (4270, 4998)]