18645985

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{5591}}^1$

素因数の和:5648

約数の個数: 16

約数和(自身を含む): 24157440

約数和(自身を除く): 5511455

約数列:

[1, 5, 23, 29, 115, 145, 667, 3335, 5591, 27955, 128593, 162139, 642965, 810695, 3729197, 18645985]

約数ペア:

[(1, 18645985), (5, 3729197), (23, 810695), (29, 642965), (115, 162139), (145, 128593), (667, 27955), (3335, 5591)]