18999728

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2633}}^1$

素因数の和:2693

約数の個数: 40

約数和(自身を含む): 41153616

約数和(自身を除く): 22153888

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 164, 176, 328, 451, 656, 902, 1804, 2633, 3608, 5266, 7216, 10532, 21064, 28963, 42128, 57926, 107953, 115852, 215906, 231704, 431812, 463408, 863624, 1187483, 1727248, 2374966, 4749932, 9499864, 18999728]

約数ペア:

[(1, 18999728), (2, 9499864), (4, 4749932), (8, 2374966), (11, 1727248), (16, 1187483), (22, 863624), (41, 463408), (44, 431812), (82, 231704), (88, 215906), (164, 115852), (176, 107953), (328, 57926), (451, 42128), (656, 28963), (902, 21064), (1804, 10532), (2633, 7216), (3608, 5266)]