21918832

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105379}}^1$

素因数の和:105400

約数の個数: 20

約数和(自身を含む): 45734920

約数和(自身を除く): 23816088

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105379, 210758, 421516, 843032, 1369927, 1686064, 2739854, 5479708, 10959416, 21918832]

約数ペア:

[(1, 21918832), (2, 10959416), (4, 5479708), (8, 2739854), (13, 1686064), (16, 1369927), (26, 843032), (52, 421516), (104, 210758), (208, 105379)]