21881122

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{2729}}^1$

素因数の和:2961

約数の個数: 16

約数和(自身を含む): 34725600

約数和(自身を除く): 12844478

約数列:

[1, 2, 19, 38, 211, 422, 2729, 4009, 5458, 8018, 51851, 103702, 575819, 1151638, 10940561, 21881122]

約数ペア:

[(1, 21881122), (2, 10940561), (19, 1151638), (38, 575819), (211, 103702), (422, 51851), (2729, 8018), (4009, 5458)]