20645142

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3299}}^1$

素因数の和:3460

約数の個数: 32

約数和(自身を含む): 47520000

約数和(自身を除く): 26874858

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 149, 298, 447, 894, 1043, 2086, 3129, 3299, 6258, 6598, 9897, 19794, 23093, 46186, 69279, 138558, 491551, 983102, 1474653, 2949306, 3440857, 6881714, 10322571, 20645142]

約数ペア:

[(1, 20645142), (2, 10322571), (3, 6881714), (6, 3440857), (7, 2949306), (14, 1474653), (21, 983102), (42, 491551), (149, 138558), (298, 69279), (447, 46186), (894, 23093), (1043, 19794), (2086, 9897), (3129, 6598), (3299, 6258)]