21208548

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^2\times {\mathrm{1291}}^1$

素因数の和:1372

約数の個数: 36

約数和(自身を含む): 50899632

約数和(自身を除く): 29691084

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 222, 444, 1291, 1369, 2582, 2738, 3873, 4107, 5164, 5476, 7746, 8214, 15492, 16428, 47767, 95534, 143301, 191068, 286602, 573204, 1767379, 3534758, 5302137, 7069516, 10604274, 21208548]

約数ペア:

[(1, 21208548), (2, 10604274), (3, 7069516), (4, 5302137), (6, 3534758), (12, 1767379), (37, 573204), (74, 286602), (111, 191068), (148, 143301), (222, 95534), (444, 47767), (1291, 16428), (1369, 15492), (2582, 8214), (2738, 7746), (3873, 5476), (4107, 5164)]