21438736

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2971}}^1$

素因数の和:3031

約数の個数: 40

約数和(自身を含む): 46434528

約数和(自身を除く): 24995792

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 164, 176, 328, 451, 656, 902, 1804, 2971, 3608, 5942, 7216, 11884, 23768, 32681, 47536, 65362, 121811, 130724, 243622, 261448, 487244, 522896, 974488, 1339921, 1948976, 2679842, 5359684, 10719368, 21438736]

約数ペア:

[(1, 21438736), (2, 10719368), (4, 5359684), (8, 2679842), (11, 1948976), (16, 1339921), (22, 974488), (41, 522896), (44, 487244), (82, 261448), (88, 243622), (164, 130724), (176, 121811), (328, 65362), (451, 47536), (656, 32681), (902, 23768), (1804, 11884), (2971, 7216), (3608, 5942)]