21866065

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{113}}^1\times {\mathrm{229}}^1$

素因数の和:373

約数の個数: 24

約数和(自身を含む): 28789560

約数和(自身を除く): 6923495

約数列:

[1, 5, 13, 65, 113, 169, 229, 565, 845, 1145, 1469, 2977, 7345, 14885, 19097, 25877, 38701, 95485, 129385, 193505, 336401, 1682005, 4373213, 21866065]

約数ペア:

[(1, 21866065), (5, 4373213), (13, 1682005), (65, 336401), (113, 193505), (169, 129385), (229, 95485), (565, 38701), (845, 25877), (1145, 19097), (1469, 14885), (2977, 7345)]