31771305

素因数分解:

$3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1499}}^1$

素因数の和:1670

約数の個数: 32

約数和(自身を含む): 56880000

約数和(自身を除く): 25108695

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157, 471, 785, 1413, 1499, 2355, 4239, 4497, 7065, 7495, 13491, 21195, 22485, 40473, 67455, 202365, 235343, 706029, 1176715, 2118087, 3530145, 6354261, 10590435, 31771305]

約数ペア:

[(1, 31771305), (3, 10590435), (5, 6354261), (9, 3530145), (15, 2118087), (27, 1176715), (45, 706029), (135, 235343), (157, 202365), (471, 67455), (785, 40473), (1413, 22485), (1499, 21195), (2355, 13491), (4239, 7495), (4497, 7065)]