21000339386

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{381533}}^1$

素因数の和:381650

約数の個数: 32

約数和(自身を含む): 35574230160

約数和(自身を除く): 14573890774

約数列:

[1, 2, 13, 26, 29, 58, 73, 146, 377, 754, 949, 1898, 2117, 4234, 27521, 55042, 381533, 763066, 4959929, 9919858, 11064457, 22128914, 27851909, 55703818, 143837941, 287675882, 362074817, 724149634, 807705361, 1615410722, 10500169693, 21000339386]

約数ペア:

[(1, 21000339386), (2, 10500169693), (13, 1615410722), (26, 807705361), (29, 724149634), (58, 362074817), (73, 287675882), (146, 143837941), (377, 55703818), (754, 27851909), (949, 22128914), (1898, 11064457), (2117, 9919858), (4234, 4959929), (27521, 763066), (55042, 381533)]