221337220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{851297}}^1$

素因数の和:851319

約数の個数: 24

約数和(自身を含む): 500563224

約数和(自身を除く): 279226004

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 851297, 1702594, 3405188, 4256485, 8512970, 11066861, 17025940, 22133722, 44267444, 55334305, 110668610, 221337220]

約数ペア:

[(1, 221337220), (2, 110668610), (4, 55334305), (5, 44267444), (10, 22133722), (13, 17025940), (20, 11066861), (26, 8512970), (52, 4256485), (65, 3405188), (130, 1702594), (260, 851297)]