21155044

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{277}}^1\times {\mathrm{313}}^1$

素因数の和:655

約数の個数: 24

約数和(自身を含む): 37884728

約数和(自身を除く): 16729684

約数列:

[1, 2, 4, 61, 122, 244, 277, 313, 554, 626, 1108, 1252, 16897, 19093, 33794, 38186, 67588, 76372, 86701, 173402, 346804, 5288761, 10577522, 21155044]

約数ペア:

[(1, 21155044), (2, 10577522), (4, 5288761), (61, 346804), (122, 173402), (244, 86701), (277, 76372), (313, 67588), (554, 38186), (626, 33794), (1108, 19093), (1252, 16897)]