21810768

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{467}}^1$

素因数の和:624

約数の個数: 80

約数和(自身を含む): 64995840

約数和(自身を除く): 43185072

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 139, 168, 278, 336, 417, 467, 556, 834, 934, 973, 1112, 1401, 1668, 1868, 1946, 2224, 2802, 2919, 3269, 3336, 3736, 3892, 5604, 5838, 6538, 6672, 7472, 7784, 9807, 11208, 11676, 13076, 15568, 19614, 22416, 23352, 26152, 39228, 46704, 52304, 64913, 78456, 129826, 156912, 194739, 259652, 389478, 454391, 519304, 778956, 908782, 1038608, 1363173, 1557912, 1817564, 2726346, 3115824, 3635128, 5452692, 7270256, 10905384, 21810768]

約数ペア:

[(1, 21810768), (2, 10905384), (3, 7270256), (4, 5452692), (6, 3635128), (7, 3115824), (8, 2726346), (12, 1817564), (14, 1557912), (16, 1363173), (21, 1038608), (24, 908782), (28, 778956), (42, 519304), (48, 454391), (56, 389478), (84, 259652), (112, 194739), (139, 156912), (168, 129826), (278, 78456), (336, 64913), (417, 52304), (467, 46704), (556, 39228), (834, 26152), (934, 23352), (973, 22416), (1112, 19614), (1401, 15568), (1668, 13076), (1868, 11676), (1946, 11208), (2224, 9807), (2802, 7784), (2919, 7472), (3269, 6672), (3336, 6538), (3736, 5838), (3892, 5604)]