21147480

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:191

約数の個数: 160

約数和(自身を含む): 72919440

約数和(自身を除く): 51771960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 61, 72, 81, 90, 107, 108, 120, 122, 135, 162, 180, 183, 214, 216, 244, 270, 305, 321, 324, 360, 366, 405, 428, 488, 535, 540, 549, 610, 642, 648, 732, 810, 856, 915, 963, 1070, 1080, 1098, 1220, 1284, 1464, 1605, 1620, 1647, 1830, 1926, 2140, 2196, 2440, 2568, 2745, 2889, 3210, 3240, 3294, 3660, 3852, 4280, 4392, 4815, 4941, 5490, 5778, 6420, 6527, 6588, 7320, 7704, 8235, 8667, 9630, 9882, 10980, 11556, 12840, 13054, 13176, 14445, 16470, 17334, 19260, 19581, 19764, 21960, 23112, 24705, 26108, 28890, 32635, 32940, 34668, 38520, 39162, 39528, 43335, 49410, 52216, 57780, 58743, 65270, 65880, 69336, 78324, 86670, 97905, 98820, 115560, 117486, 130540, 156648, 173340, 176229, 195810, 197640, 234972, 261080, 293715, 346680, 352458, 391620, 469944, 528687, 587430, 704916, 783240, 881145, 1057374, 1174860, 1409832, 1762290, 2114748, 2349720, 2643435, 3524580, 4229496, 5286870, 7049160, 10573740, 21147480]

約数ペア:

[(1, 21147480), (2, 10573740), (3, 7049160), (4, 5286870), (5, 4229496), (6, 3524580), (8, 2643435), (9, 2349720), (10, 2114748), (12, 1762290), (15, 1409832), (18, 1174860), (20, 1057374), (24, 881145), (27, 783240), (30, 704916), (36, 587430), (40, 528687), (45, 469944), (54, 391620), (60, 352458), (61, 346680), (72, 293715), (81, 261080), (90, 234972), (107, 197640), (108, 195810), (120, 176229), (122, 173340), (135, 156648), (162, 130540), (180, 117486), (183, 115560), (214, 98820), (216, 97905), (244, 86670), (270, 78324), (305, 69336), (321, 65880), (324, 65270), (360, 58743), (366, 57780), (405, 52216), (428, 49410), (488, 43335), (535, 39528), (540, 39162), (549, 38520), (610, 34668), (642, 32940), (648, 32635), (732, 28890), (810, 26108), (856, 24705), (915, 23112), (963, 21960), (1070, 19764), (1080, 19581), (1098, 19260), (1220, 17334), (1284, 16470), (1464, 14445), (1605, 13176), (1620, 13054), (1647, 12840), (1830, 11556), (1926, 10980), (2140, 9882), (2196, 9630), (2440, 8667), (2568, 8235), (2745, 7704), (2889, 7320), (3210, 6588), (3240, 6527), (3294, 6420), (3660, 5778), (3852, 5490), (4280, 4941), (4392, 4815)]