23940855

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28001}}^1$

素因数の和:28031

約数の個数: 24

約数和(自身を含む): 43683120

約数和(自身を除く): 19742265

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 28001, 84003, 140005, 252009, 420015, 532019, 1260045, 1596057, 2660095, 4788171, 7980285, 23940855]

約数ペア:

[(1, 23940855), (3, 7980285), (5, 4788171), (9, 2660095), (15, 1596057), (19, 1260045), (45, 532019), (57, 420015), (95, 252009), (171, 140005), (285, 84003), (855, 28001)]