21289672

素因数分解:

$2^3\times {\mathrm{229}}^1\times {\mathrm{11621}}^1$

素因数の和:11856

約数の個数: 16

約数和(自身を含む): 40095900

約数和(自身を除く): 18806228

約数列:

[1, 2, 4, 8, 229, 458, 916, 1832, 11621, 23242, 46484, 92968, 2661209, 5322418, 10644836, 21289672]

約数ペア:

[(1, 21289672), (2, 10644836), (4, 5322418), (8, 2661209), (229, 92968), (458, 46484), (916, 23242), (1832, 11621)]