21257742

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2351}}^1$

素因数の和:2504

約数の個数: 32

約数和(自身を含む): 46738944

約数和(自身を除く): 25481202

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 137, 274, 411, 822, 1507, 2351, 3014, 4521, 4702, 7053, 9042, 14106, 25861, 51722, 77583, 155166, 322087, 644174, 966261, 1932522, 3542957, 7085914, 10628871, 21257742]

約数ペア:

[(1, 21257742), (2, 10628871), (3, 7085914), (6, 3542957), (11, 1932522), (22, 966261), (33, 644174), (66, 322087), (137, 155166), (274, 77583), (411, 51722), (822, 25861), (1507, 14106), (2351, 9042), (3014, 7053), (4521, 4702)]