21037192

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3919}}^1$

素因数の和:3997

約数の個数: 32

約数和(自身を含む): 43747200

約数和(自身を除く): 22710008

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 3919, 5368, 7838, 15676, 31352, 43109, 86218, 172436, 239059, 344872, 478118, 956236, 1912472, 2629649, 5259298, 10518596, 21037192]

約数ペア:

[(1, 21037192), (2, 10518596), (4, 5259298), (8, 2629649), (11, 1912472), (22, 956236), (44, 478118), (61, 344872), (88, 239059), (122, 172436), (244, 86218), (488, 43109), (671, 31352), (1342, 15676), (2684, 7838), (3919, 5368)]