20890556

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{2467}}^1$

素因数の和:2573

約数の個数: 24

約数和(自身を含む): 38352720

約数和(自身を除く): 17462164

約数列:

[1, 2, 4, 29, 58, 73, 116, 146, 292, 2117, 2467, 4234, 4934, 8468, 9868, 71543, 143086, 180091, 286172, 360182, 720364, 5222639, 10445278, 20890556]

約数ペア:

[(1, 20890556), (2, 10445278), (4, 5222639), (29, 720364), (58, 360182), (73, 286172), (116, 180091), (146, 143086), (292, 71543), (2117, 9868), (2467, 8468), (4234, 4934)]