20289924

素因数分解:

$2^2\times 3^2\times {\mathrm{263}}^1\times {\mathrm{2143}}^1$

素因数の和:2416

約数の個数: 36

約数和(自身を含む): 51507456

約数和(自身を除く): 31217532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 263, 526, 789, 1052, 1578, 2143, 2367, 3156, 4286, 4734, 6429, 8572, 9468, 12858, 19287, 25716, 38574, 77148, 563609, 1127218, 1690827, 2254436, 3381654, 5072481, 6763308, 10144962, 20289924]

約数ペア:

[(1, 20289924), (2, 10144962), (3, 6763308), (4, 5072481), (6, 3381654), (9, 2254436), (12, 1690827), (18, 1127218), (36, 563609), (263, 77148), (526, 38574), (789, 25716), (1052, 19287), (1578, 12858), (2143, 9468), (2367, 8572), (3156, 6429), (4286, 4734)]