21869337

素因数分解:

$3^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 34732800

約数和(自身を除く): 12863463

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 343, 371, 401, 1029, 1113, 1203, 2597, 2807, 7791, 8421, 18179, 19649, 21253, 54537, 58947, 63759, 137543, 148771, 412629, 446313, 1041397, 3124191, 7289779, 21869337]

約数ペア:

[(1, 21869337), (3, 7289779), (7, 3124191), (21, 1041397), (49, 446313), (53, 412629), (147, 148771), (159, 137543), (343, 63759), (371, 58947), (401, 54537), (1029, 21253), (1113, 19649), (1203, 18179), (2597, 8421), (2807, 7791)]