21585690

素因数分解:

$2^1\times 3^8\times 5^1\times 7^1\times {\mathrm{47}}^1$

素因数の和:85

約数の個数: 144

約数和(自身を含む): 68020992

約数和(自身を除く): 46435302

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 47, 54, 63, 70, 81, 90, 94, 105, 126, 135, 141, 162, 189, 210, 235, 243, 270, 282, 315, 329, 378, 405, 423, 470, 486, 567, 630, 658, 705, 729, 810, 846, 945, 987, 1134, 1215, 1269, 1410, 1458, 1645, 1701, 1890, 1974, 2115, 2187, 2430, 2538, 2835, 2961, 3290, 3402, 3645, 3807, 4230, 4374, 4935, 5103, 5670, 5922, 6345, 6561, 7290, 7614, 8505, 8883, 9870, 10206, 10935, 11421, 12690, 13122, 14805, 15309, 17010, 17766, 19035, 21870, 22842, 25515, 26649, 29610, 30618, 32805, 34263, 38070, 44415, 45927, 51030, 53298, 57105, 65610, 68526, 76545, 79947, 88830, 91854, 102789, 114210, 133245, 153090, 159894, 171315, 205578, 229635, 239841, 266490, 308367, 342630, 399735, 459270, 479682, 513945, 616734, 719523, 799470, 1027890, 1199205, 1439046, 1541835, 2158569, 2398410, 3083670, 3597615, 4317138, 7195230, 10792845, 21585690]

約数ペア:

[(1, 21585690), (2, 10792845), (3, 7195230), (5, 4317138), (6, 3597615), (7, 3083670), (9, 2398410), (10, 2158569), (14, 1541835), (15, 1439046), (18, 1199205), (21, 1027890), (27, 799470), (30, 719523), (35, 616734), (42, 513945), (45, 479682), (47, 459270), (54, 399735), (63, 342630), (70, 308367), (81, 266490), (90, 239841), (94, 229635), (105, 205578), (126, 171315), (135, 159894), (141, 153090), (162, 133245), (189, 114210), (210, 102789), (235, 91854), (243, 88830), (270, 79947), (282, 76545), (315, 68526), (329, 65610), (378, 57105), (405, 53298), (423, 51030), (470, 45927), (486, 44415), (567, 38070), (630, 34263), (658, 32805), (705, 30618), (729, 29610), (810, 26649), (846, 25515), (945, 22842), (987, 21870), (1134, 19035), (1215, 17766), (1269, 17010), (1410, 15309), (1458, 14805), (1645, 13122), (1701, 12690), (1890, 11421), (1974, 10935), (2115, 10206), (2187, 9870), (2430, 8883), (2538, 8505), (2835, 7614), (2961, 7290), (3290, 6561), (3402, 6345), (3645, 5922), (3807, 5670), (4230, 5103), (4374, 4935)]