20628778

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1\times {\mathrm{617}}^1$

素因数の和:921

約数の個数: 16

約数和(自身を含む): 31555080

約数和(自身を除く): 10926302

約数列:

[1, 2, 73, 146, 229, 458, 617, 1234, 16717, 33434, 45041, 90082, 141293, 282586, 10314389, 20628778]

約数ペア:

[(1, 20628778), (2, 10314389), (73, 282586), (146, 141293), (229, 90082), (458, 45041), (617, 33434), (1234, 16717)]