21057428

素因数分解:

$2^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{3313}}^1$

素因数の和:3551

約数の個数: 24

約数和(自身を含む): 42313152

約数和(自身を除く): 21255724

約数列:

[1, 2, 4, 7, 14, 28, 227, 454, 908, 1589, 3178, 3313, 6356, 6626, 13252, 23191, 46382, 92764, 752051, 1504102, 3008204, 5264357, 10528714, 21057428]

約数ペア:

[(1, 21057428), (2, 10528714), (4, 5264357), (7, 3008204), (14, 1504102), (28, 752051), (227, 92764), (454, 46382), (908, 23191), (1589, 13252), (3178, 6626), (3313, 6356)]