20214171

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{757}}^1$

素因数の和:832

約数の個数: 32

約数和(自身を含む): 32017920

約数和(自身を除く): 11803749

約数列:

[1, 3, 9, 23, 27, 43, 69, 129, 207, 387, 621, 757, 989, 1161, 2271, 2967, 6813, 8901, 17411, 20439, 26703, 32551, 52233, 97653, 156699, 292959, 470097, 748673, 878877, 2246019, 6738057, 20214171]

約数ペア:

[(1, 20214171), (3, 6738057), (9, 2246019), (23, 878877), (27, 748673), (43, 470097), (69, 292959), (129, 156699), (207, 97653), (387, 52233), (621, 32551), (757, 26703), (989, 20439), (1161, 17411), (2271, 8901), (2967, 6813)]