21217642

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{1973}}^1$

素因数の和:2277

約数の個数: 16

約数和(自身を含む): 33636960

約数和(自身を除く): 12419318

約数列:

[1, 2, 19, 38, 283, 566, 1973, 3946, 5377, 10754, 37487, 74974, 558359, 1116718, 10608821, 21217642]

約数ペア:

[(1, 21217642), (2, 10608821), (19, 1116718), (38, 558359), (283, 74974), (566, 37487), (1973, 10754), (3946, 5377)]