18193904

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{347}}^1$

素因数の和:497

約数の個数: 40

約数和(自身を含む): 36894960

約数和(自身を除く): 18701056

約数列:

[1, 2, 4, 8, 16, 29, 58, 113, 116, 226, 232, 347, 452, 464, 694, 904, 1388, 1808, 2776, 3277, 5552, 6554, 10063, 13108, 20126, 26216, 39211, 40252, 52432, 78422, 80504, 156844, 161008, 313688, 627376, 1137119, 2274238, 4548476, 9096952, 18193904]

約数ペア:

[(1, 18193904), (2, 9096952), (4, 4548476), (8, 2274238), (16, 1137119), (29, 627376), (58, 313688), (113, 161008), (116, 156844), (226, 80504), (232, 78422), (347, 52432), (452, 40252), (464, 39211), (694, 26216), (904, 20126), (1388, 13108), (1808, 10063), (2776, 6554), (3277, 5552)]