21714780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:439

約数の個数: 96

約数和(自身を含む): 65620800

約数和(自身を除く): 43906020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 61, 68, 85, 102, 122, 170, 183, 204, 244, 255, 305, 340, 349, 366, 510, 610, 698, 732, 915, 1020, 1037, 1047, 1220, 1396, 1745, 1830, 2074, 2094, 3111, 3490, 3660, 4148, 4188, 5185, 5235, 5933, 6222, 6980, 10370, 10470, 11866, 12444, 15555, 17799, 20740, 20940, 21289, 23732, 29665, 31110, 35598, 42578, 59330, 62220, 63867, 71196, 85156, 88995, 106445, 118660, 127734, 177990, 212890, 255468, 319335, 355980, 361913, 425780, 638670, 723826, 1085739, 1277340, 1447652, 1809565, 2171478, 3619130, 4342956, 5428695, 7238260, 10857390, 21714780]

約数ペア:

[(1, 21714780), (2, 10857390), (3, 7238260), (4, 5428695), (5, 4342956), (6, 3619130), (10, 2171478), (12, 1809565), (15, 1447652), (17, 1277340), (20, 1085739), (30, 723826), (34, 638670), (51, 425780), (60, 361913), (61, 355980), (68, 319335), (85, 255468), (102, 212890), (122, 177990), (170, 127734), (183, 118660), (204, 106445), (244, 88995), (255, 85156), (305, 71196), (340, 63867), (349, 62220), (366, 59330), (510, 42578), (610, 35598), (698, 31110), (732, 29665), (915, 23732), (1020, 21289), (1037, 20940), (1047, 20740), (1220, 17799), (1396, 15555), (1745, 12444), (1830, 11866), (2074, 10470), (2094, 10370), (3111, 6980), (3490, 6222), (3660, 5933), (4148, 5235), (4188, 5185)]