20215986

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{13009}}^1$

素因数の和:13058

約数の個数: 32

約数和(自身を含む): 47460480

約数和(自身を除く): 27244494

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 222, 259, 518, 777, 1554, 13009, 26018, 39027, 78054, 91063, 182126, 273189, 481333, 546378, 962666, 1443999, 2887998, 3369331, 6738662, 10107993, 20215986]

約数ペア:

[(1, 20215986), (2, 10107993), (3, 6738662), (6, 3369331), (7, 2887998), (14, 1443999), (21, 962666), (37, 546378), (42, 481333), (74, 273189), (111, 182126), (222, 91063), (259, 78054), (518, 39027), (777, 26018), (1554, 13009)]