18917128

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{163}}^2$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 36089550

約数和(自身を除く): 17172422

約数列:

[1, 2, 4, 8, 89, 163, 178, 326, 356, 652, 712, 1304, 14507, 26569, 29014, 53138, 58028, 106276, 116056, 212552, 2364641, 4729282, 9458564, 18917128]

約数ペア:

[(1, 18917128), (2, 9458564), (4, 4729282), (8, 2364641), (89, 212552), (163, 116056), (178, 106276), (326, 58028), (356, 53138), (652, 29014), (712, 26569), (1304, 14507)]