21669335

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{3089}}^1$

素因数の和:3178

約数の個数: 16

約数和(自身を含む): 27587520

約数和(自身を除く): 5918185

約数列:

[1, 5, 23, 61, 115, 305, 1403, 3089, 7015, 15445, 71047, 188429, 355235, 942145, 4333867, 21669335]

約数ペア:

[(1, 21669335), (5, 4333867), (23, 942145), (61, 355235), (115, 188429), (305, 71047), (1403, 15445), (3089, 7015)]