21008877

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{607}}^1$

素因数の和:832

約数の個数: 16

約数和(自身を含む): 28600320

約数和(自身を除く): 7591443

約数列:

[1, 3, 83, 139, 249, 417, 607, 1821, 11537, 34611, 50381, 84373, 151143, 253119, 7002959, 21008877]

約数ペア:

[(1, 21008877), (3, 7002959), (83, 253119), (139, 151143), (249, 84373), (417, 50381), (607, 34611), (1821, 11537)]