20129998

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{38861}}^1$

素因数の和:38907

約数の個数: 16

約数和(自身を含む): 35442144

約数和(自身を除く): 15312146

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 38861, 77722, 272027, 544054, 1437857, 2875714, 10064999, 20129998]

約数ペア:

[(1, 20129998), (2, 10064999), (7, 2875714), (14, 1437857), (37, 544054), (74, 272027), (259, 77722), (518, 38861)]