18947237

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:436

約数の個数: 16

約数和(自身を含む): 20865600

約数和(自身を除く): 1918363

約数列:

[1, 19, 29, 137, 251, 551, 2603, 3973, 4769, 7279, 34387, 75487, 138301, 653353, 997223, 18947237]

約数ペア:

[(1, 18947237), (19, 997223), (29, 653353), (137, 138301), (251, 75487), (551, 34387), (2603, 7279), (3973, 4769)]