19957215

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{57847}}^1$

素因数の和:57878

約数の個数: 16

約数和(自身を含む): 33320448

約数和(自身を除く): 13363233

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 57847, 173541, 289235, 867705, 1330481, 3991443, 6652405, 19957215]

約数ペア:

[(1, 19957215), (3, 6652405), (5, 3991443), (15, 1330481), (23, 867705), (69, 289235), (115, 173541), (345, 57847)]