20957944

素因数分解:

$2^3\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1423}}^1$

素因数の和:1699

約数の個数: 32

約数和(自身を含む): 45112320

約数和(自身を除く): 24154376

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 263, 526, 1052, 1423, 1841, 2104, 2846, 3682, 5692, 7364, 9961, 11384, 14728, 19922, 39844, 79688, 374249, 748498, 1496996, 2619743, 2993992, 5239486, 10478972, 20957944]

約数ペア:

[(1, 20957944), (2, 10478972), (4, 5239486), (7, 2993992), (8, 2619743), (14, 1496996), (28, 748498), (56, 374249), (263, 79688), (526, 39844), (1052, 19922), (1423, 14728), (1841, 11384), (2104, 9961), (2846, 7364), (3682, 5692)]