19665505

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{1249}}^1$

素因数の和:1368

約数の個数: 16

約数和(自身を含む): 24480000

約数和(自身を除く): 4814495

約数列:

[1, 5, 47, 67, 235, 335, 1249, 3149, 6245, 15745, 58703, 83683, 293515, 418415, 3933101, 19665505]

約数ペア:

[(1, 19665505), (5, 3933101), (47, 418415), (67, 293515), (235, 83683), (335, 58703), (1249, 15745), (3149, 6245)]