21480184

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{443}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 47952000

約数和(自身を除く): 26471816

約数列:

[1, 2, 4, 8, 11, 19, 22, 29, 38, 44, 58, 76, 88, 116, 152, 209, 232, 319, 418, 443, 551, 638, 836, 886, 1102, 1276, 1672, 1772, 2204, 2552, 3544, 4408, 4873, 6061, 8417, 9746, 12122, 12847, 16834, 19492, 24244, 25694, 33668, 38984, 48488, 51388, 67336, 92587, 102776, 141317, 185174, 244093, 282634, 370348, 488186, 565268, 740696, 976372, 1130536, 1952744, 2685023, 5370046, 10740092, 21480184]

約数ペア:

[(1, 21480184), (2, 10740092), (4, 5370046), (8, 2685023), (11, 1952744), (19, 1130536), (22, 976372), (29, 740696), (38, 565268), (44, 488186), (58, 370348), (76, 282634), (88, 244093), (116, 185174), (152, 141317), (209, 102776), (232, 92587), (319, 67336), (418, 51388), (443, 48488), (551, 38984), (638, 33668), (836, 25694), (886, 24244), (1102, 19492), (1276, 16834), (1672, 12847), (1772, 12122), (2204, 9746), (2552, 8417), (3544, 6061), (4408, 4873)]