20799963

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:316

約数の個数: 32

約数和(自身を含む): 31932480

約数和(自身を除く): 11132517

約数列:

[1, 3, 9, 27, 61, 73, 173, 183, 219, 519, 549, 657, 1557, 1647, 1971, 4453, 4671, 10553, 12629, 13359, 31659, 37887, 40077, 94977, 113661, 120231, 284931, 340983, 770369, 2311107, 6933321, 20799963]

約数ペア:

[(1, 20799963), (3, 6933321), (9, 2311107), (27, 770369), (61, 340983), (73, 284931), (173, 120231), (183, 113661), (219, 94977), (519, 40077), (549, 37887), (657, 31659), (1557, 13359), (1647, 12629), (1971, 10553), (4453, 4671)]