21141967

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:367

約数の個数: 24

約数和(自身を含む): 26919200

約数和(自身を除く): 5777233

約数列:

[1, 7, 11, 77, 109, 121, 229, 763, 847, 1199, 1603, 2519, 8393, 13189, 17633, 24961, 27709, 92323, 174727, 193963, 274571, 1921997, 3020281, 21141967]

約数ペア:

[(1, 21141967), (7, 3020281), (11, 1921997), (77, 274571), (109, 193963), (121, 174727), (229, 92323), (763, 27709), (847, 24961), (1199, 17633), (1603, 13189), (2519, 8393)]