20726995

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{4133}}^1$

素因数の和:4214

約数の個数: 16

約数和(自身を含む): 26788320

約数和(自身を除く): 6061325

約数列:

[1, 5, 17, 59, 85, 295, 1003, 4133, 5015, 20665, 70261, 243847, 351305, 1219235, 4145399, 20726995]

約数ペア:

[(1, 20726995), (5, 4145399), (17, 1219235), (59, 351305), (85, 243847), (295, 70261), (1003, 20665), (4133, 5015)]