21016870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{2657}}^1$

素因数の和:2784

約数の個数: 32

約数和(自身を含む): 43633728

約数和(自身を除く): 22616858

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 113, 226, 565, 791, 1130, 1582, 2657, 3955, 5314, 7910, 13285, 18599, 26570, 37198, 92995, 185990, 300241, 600482, 1501205, 2101687, 3002410, 4203374, 10508435, 21016870]

約数ペア:

[(1, 21016870), (2, 10508435), (5, 4203374), (7, 3002410), (10, 2101687), (14, 1501205), (35, 600482), (70, 300241), (113, 185990), (226, 92995), (565, 37198), (791, 26570), (1130, 18599), (1582, 13285), (2657, 7910), (3955, 5314)]