20504313

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:286

約数の個数: 32

約数和(自身を含む): 31399680

約数和(自身を除く): 10895367

約数列:

[1, 3, 9, 27, 73, 101, 103, 219, 303, 309, 657, 909, 927, 1971, 2727, 2781, 7373, 7519, 10403, 22119, 22557, 31209, 66357, 67671, 93627, 199071, 203013, 280881, 759419, 2278257, 6834771, 20504313]

約数ペア:

[(1, 20504313), (3, 6834771), (9, 2278257), (27, 759419), (73, 280881), (101, 203013), (103, 199071), (219, 93627), (303, 67671), (309, 66357), (657, 31209), (909, 22557), (927, 22119), (1971, 10403), (2727, 7519), (2781, 7373)]