20508873

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1889}}^1$

素因数の和:1957

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 14327607

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 141, 231, 329, 517, 987, 1551, 1889, 3619, 5667, 10857, 13223, 20779, 39669, 62337, 88783, 145453, 266349, 436359, 621481, 976613, 1864443, 2929839, 6836291, 20508873]

約数ペア:

[(1, 20508873), (3, 6836291), (7, 2929839), (11, 1864443), (21, 976613), (33, 621481), (47, 436359), (77, 266349), (141, 145453), (231, 88783), (329, 62337), (517, 39669), (987, 20779), (1551, 13223), (1889, 10857), (3619, 5667)]