313628721

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{563}}^1\times {\mathrm{647}}^1$

素因数の和:1261

約数の個数: 32

約数和(自身を含む): 491194368

約数和(自身を除く): 177565647

約数列:

[1, 3, 7, 21, 41, 123, 287, 563, 647, 861, 1689, 1941, 3941, 4529, 11823, 13587, 23083, 26527, 69249, 79581, 161581, 185689, 364261, 484743, 557067, 1092783, 2549827, 7649481, 14934701, 44804103, 104542907, 313628721]

約数ペア:

[(1, 313628721), (3, 104542907), (7, 44804103), (21, 14934701), (41, 7649481), (123, 2549827), (287, 1092783), (563, 557067), (647, 484743), (861, 364261), (1689, 185689), (1941, 161581), (3941, 79581), (4529, 69249), (11823, 26527), (13587, 23083)]