21220290

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2591}}^1$

素因数の和:2624

約数の個数: 96

約数和(自身を含む): 67931136

約数和(自身を除く): 46710846

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 30, 35, 39, 42, 45, 63, 65, 70, 78, 90, 91, 105, 117, 126, 130, 182, 195, 210, 234, 273, 315, 390, 455, 546, 585, 630, 819, 910, 1170, 1365, 1638, 2591, 2730, 4095, 5182, 7773, 8190, 12955, 15546, 18137, 23319, 25910, 33683, 36274, 38865, 46638, 54411, 67366, 77730, 90685, 101049, 108822, 116595, 163233, 168415, 181370, 202098, 233190, 235781, 272055, 303147, 326466, 336830, 471562, 505245, 544110, 606294, 707343, 816165, 1010490, 1178905, 1414686, 1515735, 1632330, 2122029, 2357810, 3031470, 3536715, 4244058, 7073430, 10610145, 21220290]

約数ペア:

[(1, 21220290), (2, 10610145), (3, 7073430), (5, 4244058), (6, 3536715), (7, 3031470), (9, 2357810), (10, 2122029), (13, 1632330), (14, 1515735), (15, 1414686), (18, 1178905), (21, 1010490), (26, 816165), (30, 707343), (35, 606294), (39, 544110), (42, 505245), (45, 471562), (63, 336830), (65, 326466), (70, 303147), (78, 272055), (90, 235781), (91, 233190), (105, 202098), (117, 181370), (126, 168415), (130, 163233), (182, 116595), (195, 108822), (210, 101049), (234, 90685), (273, 77730), (315, 67366), (390, 54411), (455, 46638), (546, 38865), (585, 36274), (630, 33683), (819, 25910), (910, 23319), (1170, 18137), (1365, 15546), (1638, 12955), (2591, 8190), (2730, 7773), (4095, 5182)]