20731892616

素因数分解:

$2^3\times 3^2\times {\mathrm{409}}^1\times {\mathrm{704017}}^1$

素因数の和:704438

約数の個数: 48

約数和(自身を含む): 56286239100

約数和(自身を除く): 35554346484

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 409, 818, 1227, 1636, 2454, 3272, 3681, 4908, 7362, 9816, 14724, 29448, 704017, 1408034, 2112051, 2816068, 4224102, 5632136, 6336153, 8448204, 12672306, 16896408, 25344612, 50689224, 287942953, 575885906, 863828859, 1151771812, 1727657718, 2303543624, 2591486577, 3455315436, 5182973154, 6910630872, 10365946308, 20731892616]

約数ペア:

[(1, 20731892616), (2, 10365946308), (3, 6910630872), (4, 5182973154), (6, 3455315436), (8, 2591486577), (9, 2303543624), (12, 1727657718), (18, 1151771812), (24, 863828859), (36, 575885906), (72, 287942953), (409, 50689224), (818, 25344612), (1227, 16896408), (1636, 12672306), (2454, 8448204), (3272, 6336153), (3681, 5632136), (4908, 4224102), (7362, 2816068), (9816, 2112051), (14724, 1408034), (29448, 704017)]