20970856

素因数分解:

$2^3\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 40293000

約数和(自身を除く): 19322144

約数列:

[1, 2, 4, 8, 73, 146, 149, 241, 292, 298, 482, 584, 596, 964, 1192, 1928, 10877, 17593, 21754, 35186, 35909, 43508, 70372, 71818, 87016, 140744, 143636, 287272, 2621357, 5242714, 10485428, 20970856]

約数ペア:

[(1, 20970856), (2, 10485428), (4, 5242714), (8, 2621357), (73, 287272), (146, 143636), (149, 140744), (241, 87016), (292, 71818), (298, 70372), (482, 43508), (584, 35909), (596, 35186), (964, 21754), (1192, 17593), (1928, 10877)]