21183075

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{3037}}^1$

素因数の和:3084

約数の個数: 36

約数和(自身を含む): 39178048

約数和(自身を除く): 17994973

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 155, 225, 279, 465, 775, 1395, 2325, 3037, 6975, 9111, 15185, 27333, 45555, 75925, 94147, 136665, 227775, 282441, 470735, 683325, 847323, 1412205, 2353675, 4236615, 7061025, 21183075]

約数ペア:

[(1, 21183075), (3, 7061025), (5, 4236615), (9, 2353675), (15, 1412205), (25, 847323), (31, 683325), (45, 470735), (75, 282441), (93, 227775), (155, 136665), (225, 94147), (279, 75925), (465, 45555), (775, 27333), (1395, 15185), (2325, 9111), (3037, 6975)]