20280057

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{13229}}^1$

素因数の和:13312

約数の個数: 16

約数和(自身を含む): 31328640

約数和(自身を除く): 11048583

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 13229, 39687, 92603, 277809, 965717, 2897151, 6760019, 20280057]

約数ペア:

[(1, 20280057), (3, 6760019), (7, 2897151), (21, 965717), (73, 277809), (219, 92603), (511, 39687), (1533, 13229)]