31971891

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1117}}^1$

素因数の和:1203

約数の個数: 32

約数和(自身を含む): 51517440

約数和(自身を除く): 19545549

約数列:

[1, 3, 7, 21, 29, 47, 87, 141, 203, 329, 609, 987, 1117, 1363, 3351, 4089, 7819, 9541, 23457, 28623, 32393, 52499, 97179, 157497, 226751, 367493, 680253, 1102479, 1522471, 4567413, 10657297, 31971891]

約数ペア:

[(1, 31971891), (3, 10657297), (7, 4567413), (21, 1522471), (29, 1102479), (47, 680253), (87, 367493), (141, 226751), (203, 157497), (329, 97179), (609, 52499), (987, 32393), (1117, 28623), (1363, 23457), (3351, 9541), (4089, 7819)]