1996397487

素因数分解:

$3^2\times 7^1\times {\mathrm{241}}^1\times {\mathrm{131489}}^1$

素因数の和:131743

約数の個数: 24

約数和(自身を含む): 3309340320

約数和(自身を除く): 1312942833

約数列:

[1, 3, 7, 9, 21, 63, 241, 723, 1687, 2169, 5061, 15183, 131489, 394467, 920423, 1183401, 2761269, 8283807, 31688849, 95066547, 221821943, 285199641, 665465829, 1996397487]

約数ペア:

[(1, 1996397487), (3, 665465829), (7, 285199641), (9, 221821943), (21, 95066547), (63, 31688849), (241, 8283807), (723, 2761269), (1687, 1183401), (2169, 920423), (5061, 394467), (15183, 131489)]