21119494

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1$

素因数の和:396

約数の個数: 32

約数和(自身を含む): 36080640

約数和(自身を除く): 14961146

約数列:

[1, 2, 11, 22, 31, 62, 173, 179, 341, 346, 358, 682, 1903, 1969, 3806, 3938, 5363, 5549, 10726, 11098, 30967, 58993, 61039, 61934, 117986, 122078, 340637, 681274, 959977, 1919954, 10559747, 21119494]

約数ペア:

[(1, 21119494), (2, 10559747), (11, 1919954), (22, 959977), (31, 681274), (62, 340637), (173, 122078), (179, 117986), (341, 61934), (346, 61039), (358, 58993), (682, 30967), (1903, 11098), (1969, 10726), (3806, 5549), (3938, 5363)]