215248215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2221}}^1$

素因数の和:2320

約数の個数: 64

約数和(自身を含む): 430036992

約数和(自身を除く): 214788777

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 71, 91, 105, 195, 213, 273, 355, 455, 497, 923, 1065, 1365, 1491, 2221, 2485, 2769, 4615, 6461, 6663, 7455, 11105, 13845, 15547, 19383, 28873, 32305, 33315, 46641, 77735, 86619, 96915, 144365, 157691, 202111, 233205, 433095, 473073, 606333, 788455, 1010555, 1103837, 2049983, 2365365, 3031665, 3311511, 5519185, 6149949, 10249915, 14349881, 16557555, 30749745, 43049643, 71749405, 215248215]

約数ペア:

[(1, 215248215), (3, 71749405), (5, 43049643), (7, 30749745), (13, 16557555), (15, 14349881), (21, 10249915), (35, 6149949), (39, 5519185), (65, 3311511), (71, 3031665), (91, 2365365), (105, 2049983), (195, 1103837), (213, 1010555), (273, 788455), (355, 606333), (455, 473073), (497, 433095), (923, 233205), (1065, 202111), (1365, 157691), (1491, 144365), (2221, 96915), (2485, 86619), (2769, 77735), (4615, 46641), (6461, 33315), (6663, 32305), (7455, 28873), (11105, 19383), (13845, 15547)]