21607180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8123}}^1$

素因数の和:8158

約数の個数: 48

約数和(自身を含む): 54593280

約数和(自身を除く): 32986100

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 8123, 16246, 32492, 40615, 56861, 81230, 113722, 154337, 162460, 227444, 284305, 308674, 568610, 617348, 771685, 1080359, 1137220, 1543370, 2160718, 3086740, 4321436, 5401795, 10803590, 21607180]

約数ペア:

[(1, 21607180), (2, 10803590), (4, 5401795), (5, 4321436), (7, 3086740), (10, 2160718), (14, 1543370), (19, 1137220), (20, 1080359), (28, 771685), (35, 617348), (38, 568610), (70, 308674), (76, 284305), (95, 227444), (133, 162460), (140, 154337), (190, 113722), (266, 81230), (380, 56861), (532, 40615), (665, 32492), (1330, 16246), (2660, 8123)]