21822320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20983}}^1$

素因数の和:21009

約数の個数: 40

約数和(自身を含む): 54642336

約数和(自身を除く): 32820016

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 20983, 41966, 83932, 104915, 167864, 209830, 272779, 335728, 419660, 545558, 839320, 1091116, 1363895, 1678640, 2182232, 2727790, 4364464, 5455580, 10911160, 21822320]

約数ペア:

[(1, 21822320), (2, 10911160), (4, 5455580), (5, 4364464), (8, 2727790), (10, 2182232), (13, 1678640), (16, 1363895), (20, 1091116), (26, 839320), (40, 545558), (52, 419660), (65, 335728), (80, 272779), (104, 209830), (130, 167864), (208, 104915), (260, 83932), (520, 41966), (1040, 20983)]