19722508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4801}}^1$

素因数の和:4897

約数の個数: 24

約数和(自身を含む): 37647680

約数和(自身を除く): 17925172

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 4801, 9602, 19204, 62413, 124826, 249652, 379279, 758558, 1517116, 4930627, 9861254, 19722508]

約数ペア:

[(1, 19722508), (2, 9861254), (4, 4930627), (13, 1517116), (26, 758558), (52, 379279), (79, 249652), (158, 124826), (316, 62413), (1027, 19204), (2054, 9602), (4108, 4801)]