21946455

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6869}}^1$

素因数の和:6951

約数の個数: 24

約数和(自身を含む): 38581920

約数和(自身を除く): 16635465

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 6869, 20607, 34345, 61821, 103035, 309105, 487699, 1463097, 2438495, 4389291, 7315485, 21946455]

約数ペア:

[(1, 21946455), (3, 7315485), (5, 4389291), (9, 2438495), (15, 1463097), (45, 487699), (71, 309105), (213, 103035), (355, 61821), (639, 34345), (1065, 20607), (3195, 6869)]