21743678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 37208160

約数和(自身を除く): 15464482

約数列:

[1, 2, 11, 22, 29, 58, 173, 197, 319, 346, 394, 638, 1903, 2167, 3806, 4334, 5017, 5713, 10034, 11426, 34081, 55187, 62843, 68162, 110374, 125686, 374891, 749782, 988349, 1976698, 10871839, 21743678]

約数ペア:

[(1, 21743678), (2, 10871839), (11, 1976698), (22, 988349), (29, 749782), (58, 374891), (173, 125686), (197, 110374), (319, 68162), (346, 62843), (394, 55187), (638, 34081), (1903, 11426), (2167, 10034), (3806, 5713), (4334, 5017)]