20212556

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{55529}}^1$

素因数の和:55553

約数の個数: 24

約数和(自身を含む): 43535520

約数和(自身を除く): 23322964

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 55529, 111058, 222116, 388703, 721877, 777406, 1443754, 1554812, 2887508, 5053139, 10106278, 20212556]

約数ペア:

[(1, 20212556), (2, 10106278), (4, 5053139), (7, 2887508), (13, 1554812), (14, 1443754), (26, 777406), (28, 721877), (52, 388703), (91, 222116), (182, 111058), (364, 55529)]