21297390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{709913}}^1$

素因数の和:709923

約数の個数: 16

約数和(自身を含む): 51113808

約数和(自身を除く): 29816418

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 709913, 1419826, 2129739, 3549565, 4259478, 7099130, 10648695, 21297390]

約数ペア:

[(1, 21297390), (2, 10648695), (3, 7099130), (5, 4259478), (6, 3549565), (10, 2129739), (15, 1419826), (30, 709913)]