21405276

素因数分解:

$2^2\times 3^3\times {\mathrm{198197}}^1$

素因数の和:198210

約数の個数: 24

約数和(自身を含む): 55495440

約数和(自身を除く): 34090164

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 198197, 396394, 594591, 792788, 1189182, 1783773, 2378364, 3567546, 5351319, 7135092, 10702638, 21405276]

約数ペア:

[(1, 21405276), (2, 10702638), (3, 7135092), (4, 5351319), (6, 3567546), (9, 2378364), (12, 1783773), (18, 1189182), (27, 792788), (36, 594591), (54, 396394), (108, 198197)]