21142044

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 69189120

約数和(自身を除く): 48047076

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 29, 33, 36, 42, 44, 58, 63, 66, 77, 84, 87, 99, 116, 126, 132, 154, 174, 198, 203, 231, 252, 261, 263, 308, 319, 348, 396, 406, 462, 522, 526, 609, 638, 693, 789, 812, 924, 957, 1044, 1052, 1218, 1276, 1386, 1578, 1827, 1841, 1914, 2233, 2367, 2436, 2772, 2871, 2893, 3156, 3654, 3682, 3828, 4466, 4734, 5523, 5742, 5786, 6699, 7308, 7364, 7627, 8679, 8932, 9468, 11046, 11484, 11572, 13398, 15254, 16569, 17358, 20097, 20251, 22092, 22881, 26037, 26796, 30508, 33138, 34716, 40194, 40502, 45762, 52074, 53389, 60753, 66276, 68643, 80388, 81004, 83897, 91524, 104148, 106778, 121506, 137286, 160167, 167794, 182259, 213556, 243012, 251691, 274572, 320334, 335588, 364518, 480501, 503382, 587279, 640668, 729036, 755073, 961002, 1006764, 1174558, 1510146, 1761837, 1922004, 2349116, 3020292, 3523674, 5285511, 7047348, 10571022, 21142044]

約数ペア:

[(1, 21142044), (2, 10571022), (3, 7047348), (4, 5285511), (6, 3523674), (7, 3020292), (9, 2349116), (11, 1922004), (12, 1761837), (14, 1510146), (18, 1174558), (21, 1006764), (22, 961002), (28, 755073), (29, 729036), (33, 640668), (36, 587279), (42, 503382), (44, 480501), (58, 364518), (63, 335588), (66, 320334), (77, 274572), (84, 251691), (87, 243012), (99, 213556), (116, 182259), (126, 167794), (132, 160167), (154, 137286), (174, 121506), (198, 106778), (203, 104148), (231, 91524), (252, 83897), (261, 81004), (263, 80388), (308, 68643), (319, 66276), (348, 60753), (396, 53389), (406, 52074), (462, 45762), (522, 40502), (526, 40194), (609, 34716), (638, 33138), (693, 30508), (789, 26796), (812, 26037), (924, 22881), (957, 22092), (1044, 20251), (1052, 20097), (1218, 17358), (1276, 16569), (1386, 15254), (1578, 13398), (1827, 11572), (1841, 11484), (1914, 11046), (2233, 9468), (2367, 8932), (2436, 8679), (2772, 7627), (2871, 7364), (2893, 7308), (3156, 6699), (3654, 5786), (3682, 5742), (3828, 5523), (4466, 4734)]