64173887

素因数分解:

${\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 72420480

約数和(自身を除く): 8246593

約数列:

[1, 19, 23, 59, 131, 361, 437, 1121, 1357, 2489, 3013, 7729, 8303, 21299, 25783, 47291, 57247, 146851, 177767, 489877, 1087693, 2790169, 3377573, 64173887]

約数ペア:

[(1, 64173887), (19, 3377573), (23, 2790169), (59, 1087693), (131, 489877), (361, 177767), (437, 146851), (1121, 57247), (1357, 47291), (2489, 25783), (3013, 21299), (7729, 8303)]