21899985

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{18481}}^1$

素因数の和:18568

約数の個数: 16

約数和(自身を含む): 35485440

約数和(自身を除く): 13585455

約数列:

[1, 3, 5, 15, 79, 237, 395, 1185, 18481, 55443, 92405, 277215, 1459999, 4379997, 7299995, 21899985]

約数ペア:

[(1, 21899985), (3, 7299995), (5, 4379997), (15, 1459999), (79, 277215), (237, 92405), (395, 55443), (1185, 18481)]