19718096

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{72493}}^1$

素因数の和:72518

約数の個数: 20

約数和(自身を含む): 40451652

約数和(自身を除く): 20733556

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 72493, 144986, 289972, 579944, 1159888, 1232381, 2464762, 4929524, 9859048, 19718096]

約数ペア:

[(1, 19718096), (2, 9859048), (4, 4929524), (8, 2464762), (16, 1232381), (17, 1159888), (34, 579944), (68, 289972), (136, 144986), (272, 72493)]