12192021

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 18420480

約数和(自身を除く): 6228459

約数列:

[1, 3, 9, 31, 89, 93, 267, 279, 491, 801, 1473, 2759, 4419, 8277, 15221, 24831, 43699, 45663, 131097, 136989, 393291, 1354669, 4064007, 12192021]

約数ペア:

[(1, 12192021), (3, 4064007), (9, 1354669), (31, 393291), (89, 136989), (93, 131097), (267, 45663), (279, 43699), (491, 24831), (801, 15221), (1473, 8277), (2759, 4419)]