212670819

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:413

約数の個数: 64

約数和(自身を含む): 351436800

約数和(自身を除く): 138765981

約数列:

[1, 3, 9, 19, 27, 31, 43, 57, 93, 129, 171, 279, 311, 387, 513, 589, 817, 837, 933, 1161, 1333, 1767, 2451, 2799, 3999, 5301, 5909, 7353, 8397, 9641, 11997, 13373, 15903, 17727, 22059, 25327, 28923, 35991, 40119, 53181, 75981, 86769, 120357, 159543, 183179, 227943, 254087, 260307, 361071, 414563, 549537, 683829, 762261, 1243689, 1648611, 2286783, 3731067, 4945833, 6860349, 7876697, 11193201, 23630091, 70890273, 212670819]

約数ペア:

[(1, 212670819), (3, 70890273), (9, 23630091), (19, 11193201), (27, 7876697), (31, 6860349), (43, 4945833), (57, 3731067), (93, 2286783), (129, 1648611), (171, 1243689), (279, 762261), (311, 683829), (387, 549537), (513, 414563), (589, 361071), (817, 260307), (837, 254087), (933, 227943), (1161, 183179), (1333, 159543), (1767, 120357), (2451, 86769), (2799, 75981), (3999, 53181), (5301, 40119), (5909, 35991), (7353, 28923), (8397, 25327), (9641, 22059), (11997, 17727), (13373, 15903)]