21859245

素因数分解:

$3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1847}}^1$

素因数の和:2121

約数の個数: 24

約数和(自身を含む): 38054016

約数和(自身を除く): 16194771

約数列:

[1, 3, 5, 9, 15, 45, 263, 789, 1315, 1847, 2367, 3945, 5541, 9235, 11835, 16623, 27705, 83115, 485761, 1457283, 2428805, 4371849, 7286415, 21859245]

約数ペア:

[(1, 21859245), (3, 7286415), (5, 4371849), (9, 2428805), (15, 1457283), (45, 485761), (263, 83115), (789, 27705), (1315, 16623), (1847, 11835), (2367, 9235), (3945, 5541)]