18899818

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79411}}^1$

素因数の和:79437

約数の個数: 16

約数和(自身を含む): 34305984

約数和(自身を除く): 15406166

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 79411, 158822, 555877, 1111754, 1349987, 2699974, 9449909, 18899818]

約数ペア:

[(1, 18899818), (2, 9449909), (7, 2699974), (14, 1349987), (17, 1111754), (34, 555877), (119, 158822), (238, 79411)]