21282443

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{863}}^1$

素因数の和:1154

約数の個数: 16

約数和(自身を含む): 26320896

約数和(自身を除く): 5038453

約数列:

[1, 7, 13, 91, 271, 863, 1897, 3523, 6041, 11219, 24661, 78533, 233873, 1637111, 3040349, 21282443]

約数ペア:

[(1, 21282443), (7, 3040349), (13, 1637111), (91, 233873), (271, 78533), (863, 24661), (1897, 11219), (3523, 6041)]