18490288

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{67979}}^1$

素因数の和:68004

約数の個数: 20

約数和(自身を含む): 37932840

約数和(自身を除く): 19442552

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 67979, 135958, 271916, 543832, 1087664, 1155643, 2311286, 4622572, 9245144, 18490288]

約数ペア:

[(1, 18490288), (2, 9245144), (4, 4622572), (8, 2311286), (16, 1155643), (17, 1087664), (34, 543832), (68, 271916), (136, 135958), (272, 67979)]