21178380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352973}}^1$

素因数の和:352985

約数の個数: 24

約数和(自身を含む): 59299632

約数和(自身を除く): 38121252

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352973, 705946, 1058919, 1411892, 1764865, 2117838, 3529730, 4235676, 5294595, 7059460, 10589190, 21178380]

約数ペア:

[(1, 21178380), (2, 10589190), (3, 7059460), (4, 5294595), (5, 4235676), (6, 3529730), (10, 2117838), (12, 1764865), (15, 1411892), (20, 1058919), (30, 705946), (60, 352973)]