21179585

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31849}}^1$

素因数の和:31880

約数の個数: 16

約数和(自身を含む): 30576000

約数和(自身を除く): 9396415

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 31849, 159245, 222943, 605131, 1114715, 3025655, 4235917, 21179585]

約数ペア:

[(1, 21179585), (5, 4235917), (7, 3025655), (19, 1114715), (35, 605131), (95, 222943), (133, 159245), (665, 31849)]