21809997

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{12959}}^1$

素因数の和:12993

約数の個数: 24

約数和(自身を含む): 36391680

約数和(自身を除く): 14581683

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 561, 1683, 12959, 38877, 116631, 142549, 220303, 427647, 660909, 1282941, 1982727, 2423333, 7269999, 21809997]

約数ペア:

[(1, 21809997), (3, 7269999), (9, 2423333), (11, 1982727), (17, 1282941), (33, 660909), (51, 427647), (99, 220303), (153, 142549), (187, 116631), (561, 38877), (1683, 12959)]