1311115

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{877}}^1$

素因数の和:918

約数の個数: 16

約数和(自身を含む): 1770048

約数和(自身を除く): 458933

約数列:

[1, 5, 13, 23, 65, 115, 299, 877, 1495, 4385, 11401, 20171, 57005, 100855, 262223, 1311115]

約数ペア:

[(1, 1311115), (5, 262223), (13, 100855), (23, 57005), (65, 20171), (115, 11401), (299, 4385), (877, 1495)]