21203930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:104

約数の個数: 96

約数和(自身を含む): 47744640

約数和(自身を除く): 26540710

約数列:

[1, 2, 5, 10, 11, 17, 22, 23, 29, 34, 46, 55, 58, 85, 110, 115, 145, 170, 187, 230, 253, 289, 290, 319, 374, 391, 493, 506, 578, 638, 667, 782, 935, 986, 1265, 1334, 1445, 1595, 1870, 1955, 2465, 2530, 2890, 3179, 3190, 3335, 3910, 4301, 4930, 5423, 6358, 6647, 6670, 7337, 8381, 8602, 10846, 11339, 13294, 14674, 15895, 16762, 21505, 22678, 27115, 31790, 33235, 36685, 41905, 43010, 54230, 56695, 66470, 73117, 73370, 83810, 92191, 113390, 124729, 146234, 184382, 192763, 249458, 365585, 385526, 460955, 623645, 731170, 921910, 963815, 1247290, 1927630, 2120393, 4240786, 10601965, 21203930]

約数ペア:

[(1, 21203930), (2, 10601965), (5, 4240786), (10, 2120393), (11, 1927630), (17, 1247290), (22, 963815), (23, 921910), (29, 731170), (34, 623645), (46, 460955), (55, 385526), (58, 365585), (85, 249458), (110, 192763), (115, 184382), (145, 146234), (170, 124729), (187, 113390), (230, 92191), (253, 83810), (289, 73370), (290, 73117), (319, 66470), (374, 56695), (391, 54230), (493, 43010), (506, 41905), (578, 36685), (638, 33235), (667, 31790), (782, 27115), (935, 22678), (986, 21505), (1265, 16762), (1334, 15895), (1445, 14674), (1595, 13294), (1870, 11339), (1955, 10846), (2465, 8602), (2530, 8381), (2890, 7337), (3179, 6670), (3190, 6647), (3335, 6358), (3910, 5423), (4301, 4930)]