21336255

素因数分解:

$3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1889}}^1$

素因数の和:2151

約数の個数: 24

約数和(自身を含む): 37149840

約数和(自身を除く): 15813585

約数列:

[1, 3, 5, 9, 15, 45, 251, 753, 1255, 1889, 2259, 3765, 5667, 9445, 11295, 17001, 28335, 85005, 474139, 1422417, 2370695, 4267251, 7112085, 21336255]

約数ペア:

[(1, 21336255), (3, 7112085), (5, 4267251), (9, 2370695), (15, 1422417), (45, 474139), (251, 85005), (753, 28335), (1255, 17001), (1889, 11295), (2259, 9445), (3765, 5667)]