20401578

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{10211}}^1$

素因数の和:10259

約数の個数: 32

約数和(自身を含む): 46566720

約数和(自身を除く): 26165142

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 10211, 20422, 30633, 61266, 91899, 183798, 275697, 377807, 551394, 755614, 1133421, 2266842, 3400263, 6800526, 10200789, 20401578]

約数ペア:

[(1, 20401578), (2, 10200789), (3, 6800526), (6, 3400263), (9, 2266842), (18, 1133421), (27, 755614), (37, 551394), (54, 377807), (74, 275697), (111, 183798), (222, 91899), (333, 61266), (666, 30633), (999, 20422), (1998, 10211)]