221520138

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{5274289}}^1$

素因数の和:5274301

約数の個数: 16

約数和(自身を含む): 506331840

約数和(自身を除く): 284811702

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 5274289, 10548578, 15822867, 31645734, 36920023, 73840046, 110760069, 221520138]

約数ペア:

[(1, 221520138), (2, 110760069), (3, 73840046), (6, 36920023), (7, 31645734), (14, 15822867), (21, 10548578), (42, 5274289)]