18993392

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{347}}^1$

素因数の和:677

約数の個数: 40

約数和(自身を含む): 40390272

約数和(自身を除く): 21396880

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 311, 347, 622, 694, 1244, 1388, 2488, 2776, 3421, 3817, 4976, 5552, 6842, 7634, 13684, 15268, 27368, 30536, 54736, 61072, 107917, 215834, 431668, 863336, 1187087, 1726672, 2374174, 4748348, 9496696, 18993392]

約数ペア:

[(1, 18993392), (2, 9496696), (4, 4748348), (8, 2374174), (11, 1726672), (16, 1187087), (22, 863336), (44, 431668), (88, 215834), (176, 107917), (311, 61072), (347, 54736), (622, 30536), (694, 27368), (1244, 15268), (1388, 13684), (2488, 7634), (2776, 6842), (3421, 5552), (3817, 4976)]