21401808

素因数分解:

$2^4\times 3^1\times {\mathrm{445871}}^1$

素因数の和:445882

約数の個数: 20

約数和(自身を含む): 55288128

約数和(自身を除く): 33886320

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 445871, 891742, 1337613, 1783484, 2675226, 3566968, 5350452, 7133936, 10700904, 21401808]

約数ペア:

[(1, 21401808), (2, 10700904), (3, 7133936), (4, 5350452), (6, 3566968), (8, 2675226), (12, 1783484), (16, 1337613), (24, 891742), (48, 445871)]