21091313860

素因数分解:

$2^2\times 5^1\times {\mathrm{797}}^1\times {\mathrm{1323169}}^1$

素因数の和:1323975

約数の個数: 24

約数和(自身を含む): 44347365720

約数和(自身を除く): 23256051860

約数列:

[1, 2, 4, 5, 10, 20, 797, 1594, 3188, 3985, 7970, 15940, 1323169, 2646338, 5292676, 6615845, 13231690, 26463380, 1054565693, 2109131386, 4218262772, 5272828465, 10545656930, 21091313860]

約数ペア:

[(1, 21091313860), (2, 10545656930), (4, 5272828465), (5, 4218262772), (10, 2109131386), (20, 1054565693), (797, 26463380), (1594, 13231690), (3188, 6615845), (3985, 5292676), (7970, 2646338), (15940, 1323169)]