12831455

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28201}}^1$

素因数の和:28226

約数の個数: 16

約数和(自身を含む): 18951744

約数和(自身を除く): 6120289

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 28201, 141005, 197407, 366613, 987035, 1833065, 2566291, 12831455]

約数ペア:

[(1, 12831455), (5, 2566291), (7, 1833065), (13, 987035), (35, 366613), (65, 197407), (91, 141005), (455, 28201)]