28381935

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 47139840

約数和(自身を除く): 18757905

約数列:

[1, 3, 5, 15, 43, 79, 129, 215, 237, 395, 557, 645, 1185, 1671, 2785, 3397, 8355, 10191, 16985, 23951, 44003, 50955, 71853, 119755, 132009, 220015, 359265, 660045, 1892129, 5676387, 9460645, 28381935]

約数ペア:

[(1, 28381935), (3, 9460645), (5, 5676387), (15, 1892129), (43, 660045), (79, 359265), (129, 220015), (215, 132009), (237, 119755), (395, 71853), (557, 50955), (645, 44003), (1185, 23951), (1671, 16985), (2785, 10191), (3397, 8355)]