21956804757

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{42800789}}^1$

素因数の和:42800817

約数の個数: 16

約数和(自身を含む): 34240632000

約数和(自身を除く): 12283827243

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 42800789, 128402367, 385207101, 813214991, 1155621303, 2439644973, 7318934919, 21956804757]

約数ペア:

[(1, 21956804757), (3, 7318934919), (9, 2439644973), (19, 1155621303), (27, 813214991), (57, 385207101), (171, 128402367), (513, 42800789)]