31386969

素因数分解:

$3^2\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 46297160

約数和(自身を除く): 14910191

約数列:

[1, 3, 9, 97, 157, 229, 291, 471, 687, 873, 1413, 2061, 15229, 22213, 35953, 45687, 66639, 107859, 137061, 199917, 323577, 3487441, 10462323, 31386969]

約数ペア:

[(1, 31386969), (3, 10462323), (9, 3487441), (97, 323577), (157, 199917), (229, 137061), (291, 107859), (471, 66639), (687, 45687), (873, 35953), (1413, 22213), (2061, 15229)]