21215108

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2591}}^1$

素因数の和:2707

約数の個数: 24

約数和(自身を含む): 39191040

約数和(自身を除く): 17975932

約数列:

[1, 2, 4, 23, 46, 89, 92, 178, 356, 2047, 2591, 4094, 5182, 8188, 10364, 59593, 119186, 230599, 238372, 461198, 922396, 5303777, 10607554, 21215108]

約数ペア:

[(1, 21215108), (2, 10607554), (4, 5303777), (23, 922396), (46, 461198), (89, 238372), (92, 230599), (178, 119186), (356, 59593), (2047, 10364), (2591, 8188), (4094, 5182)]