20089809

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:302

約数の個数: 32

約数和(自身を含む): 30844800

約数和(自身を除く): 10754991

約数列:

[1, 3, 9, 27, 53, 101, 139, 159, 303, 417, 477, 909, 1251, 1431, 2727, 3753, 5353, 7367, 14039, 16059, 22101, 42117, 48177, 66303, 126351, 144531, 198909, 379053, 744067, 2232201, 6696603, 20089809]

約数ペア:

[(1, 20089809), (3, 6696603), (9, 2232201), (27, 744067), (53, 379053), (101, 198909), (139, 144531), (159, 126351), (303, 66303), (417, 48177), (477, 42117), (909, 22101), (1251, 16059), (1431, 14039), (2727, 7367), (3753, 5353)]