21551684

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{419}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 47416320

約数和(自身を除く): 25864636

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 167, 308, 334, 419, 668, 838, 1169, 1676, 1837, 2338, 2933, 3674, 4609, 4676, 5866, 7348, 9218, 11732, 12859, 18436, 25718, 32263, 51436, 64526, 69973, 129052, 139946, 279892, 489811, 769703, 979622, 1539406, 1959244, 3078812, 5387921, 10775842, 21551684]

約数ペア:

[(1, 21551684), (2, 10775842), (4, 5387921), (7, 3078812), (11, 1959244), (14, 1539406), (22, 979622), (28, 769703), (44, 489811), (77, 279892), (154, 139946), (167, 129052), (308, 69973), (334, 64526), (419, 51436), (668, 32263), (838, 25718), (1169, 18436), (1676, 12859), (1837, 11732), (2338, 9218), (2933, 7348), (3674, 5866), (4609, 4676)]