20186707989

素因数分解:

$3^1\times 7^1\times {\mathrm{617}}^1\times {\mathrm{661}}^1\times {\mathrm{2357}}^1$

素因数の和:3645

約数の個数: 32

約数和(自身を含む): 30870256896

約数和(自身を除く): 10683548907

約数列:

[1, 3, 7, 21, 617, 661, 1851, 1983, 2357, 4319, 4627, 7071, 12957, 13881, 16499, 49497, 407837, 1223511, 1454269, 1557977, 2854859, 4362807, 4673931, 8564577, 10179883, 10905839, 30539649, 32717517, 961271809, 2883815427, 6728902663, 20186707989]

約数ペア:

[(1, 20186707989), (3, 6728902663), (7, 2883815427), (21, 961271809), (617, 32717517), (661, 30539649), (1851, 10905839), (1983, 10179883), (2357, 8564577), (4319, 4673931), (4627, 4362807), (7071, 2854859), (12957, 1557977), (13881, 1454269), (16499, 1223511), (49497, 407837)]