81211873

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{907}}^1$

素因数の和:1176

約数の個数: 16

約数和(自身を含む): 90218880

約数和(自身を除く): 9007007

約数列:

[1, 17, 23, 229, 391, 907, 3893, 5267, 15419, 20861, 89539, 207703, 354637, 3530951, 4777169, 81211873]

約数ペア:

[(1, 81211873), (17, 4777169), (23, 3530951), (229, 354637), (391, 207703), (907, 89539), (3893, 20861), (5267, 15419)]