21039522

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{71563}}^1$

素因数の和:71582

約数の個数: 24

約数和(自身を含む): 48949776

約数和(自身を除く): 27910254

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 71563, 143126, 214689, 429378, 500941, 1001882, 1502823, 3005646, 3506587, 7013174, 10519761, 21039522]

約数ペア:

[(1, 21039522), (2, 10519761), (3, 7013174), (6, 3506587), (7, 3005646), (14, 1502823), (21, 1001882), (42, 500941), (49, 429378), (98, 214689), (147, 143126), (294, 71563)]