20896628

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{241}}^1\times {\mathrm{409}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 37505160

約数和(自身を除く): 16608532

約数列:

[1, 2, 4, 53, 106, 212, 241, 409, 482, 818, 964, 1636, 12773, 21677, 25546, 43354, 51092, 86708, 98569, 197138, 394276, 5224157, 10448314, 20896628]

約数ペア:

[(1, 20896628), (2, 10448314), (4, 5224157), (53, 394276), (106, 197138), (212, 98569), (241, 86708), (409, 51092), (482, 43354), (818, 25546), (964, 21677), (1636, 12773)]