21282642

素因数分解:

$2^1\times 3^3\times {\mathrm{394123}}^1$

素因数の和:394134

約数の個数: 16

約数和(自身を含む): 47294880

約数和(自身を除く): 26012238

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 394123, 788246, 1182369, 2364738, 3547107, 7094214, 10641321, 21282642]

約数ペア:

[(1, 21282642), (2, 10641321), (3, 7094214), (6, 3547107), (9, 2364738), (18, 1182369), (27, 788246), (54, 394123)]