21149196

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{241}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 50738688

約数和(自身を除く): 29589492

約数列:

[1, 2, 3, 4, 6, 12, 71, 103, 142, 206, 213, 241, 284, 309, 412, 426, 482, 618, 723, 852, 964, 1236, 1446, 2892, 7313, 14626, 17111, 21939, 24823, 29252, 34222, 43878, 49646, 51333, 68444, 74469, 87756, 99292, 102666, 148938, 205332, 297876, 1762433, 3524866, 5287299, 7049732, 10574598, 21149196]

約数ペア:

[(1, 21149196), (2, 10574598), (3, 7049732), (4, 5287299), (6, 3524866), (12, 1762433), (71, 297876), (103, 205332), (142, 148938), (206, 102666), (213, 99292), (241, 87756), (284, 74469), (309, 68444), (412, 51333), (426, 49646), (482, 43878), (618, 34222), (723, 29252), (852, 24823), (964, 21939), (1236, 17111), (1446, 14626), (2892, 7313)]