21690378

素因数分解:

$2^1\times 3^2\times {\mathrm{211}}^1\times {\mathrm{5711}}^1$

素因数の和:5930

約数の個数: 24

約数和(自身を含む): 47226816

約数和(自身を除く): 25536438

約数列:

[1, 2, 3, 6, 9, 18, 211, 422, 633, 1266, 1899, 3798, 5711, 11422, 17133, 34266, 51399, 102798, 1205021, 2410042, 3615063, 7230126, 10845189, 21690378]

約数ペア:

[(1, 21690378), (2, 10845189), (3, 7230126), (6, 3615063), (9, 2410042), (18, 1205021), (211, 102798), (422, 51399), (633, 34266), (1266, 17133), (1899, 11422), (3798, 5711)]