18419956

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{821}}^1$

素因数の和:975

約数の個数: 24

約数和(自身を含む): 33143040

約数和(自身を除く): 14723084

約数列:

[1, 2, 4, 71, 79, 142, 158, 284, 316, 821, 1642, 3284, 5609, 11218, 22436, 58291, 64859, 116582, 129718, 233164, 259436, 4604989, 9209978, 18419956]

約数ペア:

[(1, 18419956), (2, 9209978), (4, 4604989), (71, 259436), (79, 233164), (142, 129718), (158, 116582), (284, 64859), (316, 58291), (821, 22436), (1642, 11218), (3284, 5609)]