21256740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118093}}^1$

素因数の和:118108

約数の個数: 36

約数和(自身を含む): 64479324

約数和(自身を除く): 43222584

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118093, 236186, 354279, 472372, 590465, 708558, 1062837, 1180930, 1417116, 1771395, 2125674, 2361860, 3542790, 4251348, 5314185, 7085580, 10628370, 21256740]

約数ペア:

[(1, 21256740), (2, 10628370), (3, 7085580), (4, 5314185), (5, 4251348), (6, 3542790), (9, 2361860), (10, 2125674), (12, 1771395), (15, 1417116), (18, 1180930), (20, 1062837), (30, 708558), (36, 590465), (45, 472372), (60, 354279), (90, 236186), (180, 118093)]