21991734

素因数分解:

$2^1\times 3^2\times {\mathrm{653}}^1\times {\mathrm{1871}}^1$

素因数の和:2532

約数の個数: 24

約数和(自身を含む): 47747232

約数和(自身を除く): 25755498

約数列:

[1, 2, 3, 6, 9, 18, 653, 1306, 1871, 1959, 3742, 3918, 5613, 5877, 11226, 11754, 16839, 33678, 1221763, 2443526, 3665289, 7330578, 10995867, 21991734]

約数ペア:

[(1, 21991734), (2, 10995867), (3, 7330578), (6, 3665289), (9, 2443526), (18, 1221763), (653, 33678), (1306, 16839), (1871, 11754), (1959, 11226), (3742, 5877), (3918, 5613)]