19955556

素因数分解:

$2^2\times 3^2\times {\mathrm{151}}^1\times {\mathrm{3671}}^1$

素因数の和:3832

約数の個数: 36

約数和(自身を含む): 50791104

約数和(自身を除く): 30835548

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 151, 302, 453, 604, 906, 1359, 1812, 2718, 3671, 5436, 7342, 11013, 14684, 22026, 33039, 44052, 66078, 132156, 554321, 1108642, 1662963, 2217284, 3325926, 4988889, 6651852, 9977778, 19955556]

約数ペア:

[(1, 19955556), (2, 9977778), (3, 6651852), (4, 4988889), (6, 3325926), (9, 2217284), (12, 1662963), (18, 1108642), (36, 554321), (151, 132156), (302, 66078), (453, 44052), (604, 33039), (906, 22026), (1359, 14684), (1812, 11013), (2718, 7342), (3671, 5436)]