172215

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:143

約数の個数: 24

約数和(自身を含む): 308880

約数和(自身を除く): 136665

約数列:

[1, 3, 5, 9, 15, 43, 45, 89, 129, 215, 267, 387, 445, 645, 801, 1335, 1935, 3827, 4005, 11481, 19135, 34443, 57405, 172215]

約数ペア:

[(1, 172215), (3, 57405), (5, 34443), (9, 19135), (15, 11481), (43, 4005), (45, 3827), (89, 1935), (129, 1335), (215, 801), (267, 645), (387, 445)]