20797953

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{283}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 32389632

約数和(自身を除く): 11591679

約数列:

[1, 3, 11, 17, 33, 51, 131, 187, 283, 393, 561, 849, 1441, 2227, 3113, 4323, 4811, 6681, 9339, 14433, 24497, 37073, 52921, 73491, 111219, 158763, 407803, 630241, 1223409, 1890723, 6932651, 20797953]

約数ペア:

[(1, 20797953), (3, 6932651), (11, 1890723), (17, 1223409), (33, 630241), (51, 407803), (131, 158763), (187, 111219), (283, 73491), (393, 52921), (561, 37073), (849, 24497), (1441, 14433), (2227, 9339), (3113, 6681), (4323, 4811)]