21710475

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{2053}}^1$

素因数の和:2116

約数の個数: 36

約数和(自身を含む): 39732576

約数和(自身を除く): 18022101

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 423, 705, 1175, 2053, 2115, 3525, 6159, 10265, 10575, 18477, 30795, 51325, 92385, 96491, 153975, 289473, 461925, 482455, 868419, 1447365, 2412275, 4342095, 7236825, 21710475]

約数ペア:

[(1, 21710475), (3, 7236825), (5, 4342095), (9, 2412275), (15, 1447365), (25, 868419), (45, 482455), (47, 461925), (75, 289473), (141, 153975), (225, 96491), (235, 92385), (423, 51325), (705, 30795), (1175, 18477), (2053, 10575), (2115, 10265), (3525, 6159)]