18149747

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 23288832

約数和(自身を除く): 5139085

約数列:

[1, 7, 11, 49, 77, 151, 223, 539, 1057, 1561, 1661, 2453, 7399, 10927, 11627, 17171, 33673, 81389, 120197, 235711, 370403, 1649977, 2592821, 18149747]

約数ペア:

[(1, 18149747), (7, 2592821), (11, 1649977), (49, 370403), (77, 235711), (151, 120197), (223, 81389), (539, 33673), (1057, 17171), (1561, 11627), (1661, 10927), (2453, 7399)]