61991205

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{491}}^1$

素因数の和:961

約数の個数: 32

約数和(自身を含む): 104855040

約数和(自身を除く): 42863835

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 443, 491, 1329, 1473, 2215, 2455, 6645, 7365, 8417, 9329, 25251, 27987, 42085, 46645, 126255, 139935, 217513, 652539, 1087565, 3262695, 4132747, 12398241, 20663735, 61991205]

約数ペア:

[(1, 61991205), (3, 20663735), (5, 12398241), (15, 4132747), (19, 3262695), (57, 1087565), (95, 652539), (285, 217513), (443, 139935), (491, 126255), (1329, 46645), (1473, 42085), (2215, 27987), (2455, 25251), (6645, 9329), (7365, 8417)]