20652561

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{577}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 30927624

約数和(自身を除く): 10275063

約数列:

[1, 3, 9, 41, 97, 123, 291, 369, 577, 873, 1731, 3977, 5193, 11931, 23657, 35793, 55969, 70971, 167907, 212913, 503721, 2294729, 6884187, 20652561]

約数ペア:

[(1, 20652561), (3, 6884187), (9, 2294729), (41, 503721), (97, 212913), (123, 167907), (291, 70971), (369, 55969), (577, 35793), (873, 23657), (1731, 11931), (3977, 5193)]