21403312

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:194

約数の個数: 80

約数和(自身を含む): 49996800

約数和(自身を除く): 28593488

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 59, 79, 82, 112, 118, 158, 164, 236, 287, 316, 328, 413, 472, 553, 574, 632, 656, 826, 944, 1106, 1148, 1264, 1652, 2212, 2296, 2419, 3239, 3304, 4424, 4592, 4661, 4838, 6478, 6608, 8848, 9322, 9676, 12956, 16933, 18644, 19352, 22673, 25912, 32627, 33866, 37288, 38704, 45346, 51824, 65254, 67732, 74576, 90692, 130508, 135464, 181384, 191101, 261016, 270928, 362768, 382202, 522032, 764404, 1337707, 1528808, 2675414, 3057616, 5350828, 10701656, 21403312]

約数ペア:

[(1, 21403312), (2, 10701656), (4, 5350828), (7, 3057616), (8, 2675414), (14, 1528808), (16, 1337707), (28, 764404), (41, 522032), (56, 382202), (59, 362768), (79, 270928), (82, 261016), (112, 191101), (118, 181384), (158, 135464), (164, 130508), (236, 90692), (287, 74576), (316, 67732), (328, 65254), (413, 51824), (472, 45346), (553, 38704), (574, 37288), (632, 33866), (656, 32627), (826, 25912), (944, 22673), (1106, 19352), (1148, 18644), (1264, 16933), (1652, 12956), (2212, 9676), (2296, 9322), (2419, 8848), (3239, 6608), (3304, 6478), (4424, 4838), (4592, 4661)]