21138564

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 56448000

約数和(自身を除く): 35309436

約数列:

[1, 2, 3, 4, 6, 12, 19, 23, 29, 38, 46, 57, 58, 69, 76, 87, 92, 114, 116, 138, 139, 174, 228, 276, 278, 348, 417, 437, 551, 556, 667, 834, 874, 1102, 1311, 1334, 1653, 1668, 1748, 2001, 2204, 2622, 2641, 2668, 3197, 3306, 4002, 4031, 5244, 5282, 6394, 6612, 7923, 8004, 8062, 9591, 10564, 12093, 12673, 12788, 15846, 16124, 19182, 24186, 25346, 31692, 38019, 38364, 48372, 50692, 60743, 76038, 76589, 92713, 121486, 152076, 153178, 182229, 185426, 229767, 242972, 278139, 306356, 364458, 370852, 459534, 556278, 728916, 919068, 1112556, 1761547, 3523094, 5284641, 7046188, 10569282, 21138564]

約数ペア:

[(1, 21138564), (2, 10569282), (3, 7046188), (4, 5284641), (6, 3523094), (12, 1761547), (19, 1112556), (23, 919068), (29, 728916), (38, 556278), (46, 459534), (57, 370852), (58, 364458), (69, 306356), (76, 278139), (87, 242972), (92, 229767), (114, 185426), (116, 182229), (138, 153178), (139, 152076), (174, 121486), (228, 92713), (276, 76589), (278, 76038), (348, 60743), (417, 50692), (437, 48372), (551, 38364), (556, 38019), (667, 31692), (834, 25346), (874, 24186), (1102, 19182), (1311, 16124), (1334, 15846), (1653, 12788), (1668, 12673), (1748, 12093), (2001, 10564), (2204, 9591), (2622, 8062), (2641, 8004), (2668, 7923), (3197, 6612), (3306, 6394), (4002, 5282), (4031, 5244)]