21241979

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{227}}^1$

素因数の和:466

約数の個数: 16

約数和(自身を含む): 23901696

約数和(自身を除く): 2659717

約数列:

[1, 11, 47, 181, 227, 517, 1991, 2497, 8507, 10669, 41087, 93577, 117359, 451957, 1931089, 21241979]

約数ペア:

[(1, 21241979), (11, 1931089), (47, 451957), (181, 117359), (227, 93577), (517, 41087), (1991, 10669), (2497, 8507)]