17985885

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1409}}^1$

素因数の和:1477

約数の個数: 32

約数和(自身を含む): 30862080

約数和(自身を除く): 12876195

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 1409, 2553, 4227, 4255, 7045, 12765, 21135, 32407, 52133, 97221, 156399, 162035, 260665, 486105, 781995, 1199059, 3597177, 5995295, 17985885]

約数ペア:

[(1, 17985885), (3, 5995295), (5, 3597177), (15, 1199059), (23, 781995), (37, 486105), (69, 260665), (111, 162035), (115, 156399), (185, 97221), (345, 52133), (555, 32407), (851, 21135), (1409, 12765), (2553, 7045), (4227, 4255)]