21000886197

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{4421}}^1\times {\mathrm{15373}}^1$

素因数の和:19900

約数の個数: 16

約数和(自身を含む): 28281272448

約数和(自身を除く): 7280386251

約数列:

[1, 3, 103, 309, 4421, 13263, 15373, 46119, 455363, 1366089, 1583419, 4750257, 67964033, 203892099, 7000295399, 21000886197]

約数ペア:

[(1, 21000886197), (3, 7000295399), (103, 203892099), (309, 67964033), (4421, 4750257), (13263, 1583419), (15373, 1366089), (46119, 455363)]