20358824

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 39320640

約数和(自身を除く): 18961816

約数列:

[1, 2, 4, 8, 71, 73, 142, 146, 284, 292, 491, 568, 584, 982, 1964, 3928, 5183, 10366, 20732, 34861, 35843, 41464, 69722, 71686, 139444, 143372, 278888, 286744, 2544853, 5089706, 10179412, 20358824]

約数ペア:

[(1, 20358824), (2, 10179412), (4, 5089706), (8, 2544853), (71, 286744), (73, 278888), (142, 143372), (146, 139444), (284, 71686), (292, 69722), (491, 41464), (568, 35843), (584, 34861), (982, 20732), (1964, 10366), (3928, 5183)]