21347552

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 44008272

約数和(自身を除く): 22660720

約数列:

[1, 2, 4, 8, 16, 32, 41, 53, 82, 106, 164, 212, 307, 328, 424, 614, 656, 848, 1228, 1312, 1696, 2173, 2456, 4346, 4912, 8692, 9824, 12587, 16271, 17384, 25174, 32542, 34768, 50348, 65084, 69536, 100696, 130168, 201392, 260336, 402784, 520672, 667111, 1334222, 2668444, 5336888, 10673776, 21347552]

約数ペア:

[(1, 21347552), (2, 10673776), (4, 5336888), (8, 2668444), (16, 1334222), (32, 667111), (41, 520672), (53, 402784), (82, 260336), (106, 201392), (164, 130168), (212, 100696), (307, 69536), (328, 65084), (424, 50348), (614, 34768), (656, 32542), (848, 25174), (1228, 17384), (1312, 16271), (1696, 12587), (2173, 9824), (2456, 8692), (4346, 4912)]