20557628

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{56477}}^1$

素因数の和:56501

約数の個数: 24

約数和(自身を含む): 44278752

約数和(自身を除く): 23721124

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 56477, 112954, 225908, 395339, 734201, 790678, 1468402, 1581356, 2936804, 5139407, 10278814, 20557628]

約数ペア:

[(1, 20557628), (2, 10278814), (4, 5139407), (7, 2936804), (13, 1581356), (14, 1468402), (26, 790678), (28, 734201), (52, 395339), (91, 225908), (182, 112954), (364, 56477)]