19975155

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{57899}}^1$

素因数の和:57930

約数の個数: 16

約数和(自身を含む): 33350400

約数和(自身を除く): 13375245

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 57899, 173697, 289495, 868485, 1331677, 3995031, 6658385, 19975155]

約数ペア:

[(1, 19975155), (3, 6658385), (5, 3995031), (15, 1331677), (23, 868485), (69, 289495), (115, 173697), (345, 57899)]