19711415

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5393}}^1$

素因数の和:5458

約数の個数: 16

約数和(自身を含む): 25632288

約数和(自身を除く): 5920873

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 5393, 26965, 91681, 231899, 458405, 1159495, 3942283, 19711415]

約数ペア:

[(1, 19711415), (5, 3942283), (17, 1159495), (43, 458405), (85, 231899), (215, 91681), (731, 26965), (3655, 5393)]