21696476

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{1109}}^1$

素因数の和:1253

約数の個数: 24

約数和(自身を含む): 39098640

約数和(自身を除く): 17402164

約数列:

[1, 2, 4, 67, 73, 134, 146, 268, 292, 1109, 2218, 4436, 4891, 9782, 19564, 74303, 80957, 148606, 161914, 297212, 323828, 5424119, 10848238, 21696476]

約数ペア:

[(1, 21696476), (2, 10848238), (4, 5424119), (67, 323828), (73, 297212), (134, 161914), (146, 148606), (268, 80957), (292, 74303), (1109, 19564), (2218, 9782), (4436, 4891)]