21298380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{354973}}^1$

素因数の和:354985

約数の個数: 24

約数和(自身を含む): 59635632

約数和(自身を除く): 38337252

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 354973, 709946, 1064919, 1419892, 1774865, 2129838, 3549730, 4259676, 5324595, 7099460, 10649190, 21298380]

約数ペア:

[(1, 21298380), (2, 10649190), (3, 7099460), (4, 5324595), (5, 4259676), (6, 3549730), (10, 2129838), (12, 1774865), (15, 1419892), (20, 1064919), (30, 709946), (60, 354973)]