21962395

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 33730560

約数和(自身を除く): 11768165

約数列:

[1, 5, 7, 13, 35, 47, 65, 79, 91, 169, 235, 329, 395, 455, 553, 611, 845, 1027, 1183, 1645, 2765, 3055, 3713, 4277, 5135, 5915, 7189, 7943, 13351, 18565, 21385, 25991, 35945, 39715, 48269, 55601, 66755, 93457, 129955, 241345, 278005, 337883, 467285, 627497, 1689415, 3137485, 4392479, 21962395]

約数ペア:

[(1, 21962395), (5, 4392479), (7, 3137485), (13, 1689415), (35, 627497), (47, 467285), (65, 337883), (79, 278005), (91, 241345), (169, 129955), (235, 93457), (329, 66755), (395, 55601), (455, 48269), (553, 39715), (611, 35945), (845, 25991), (1027, 21385), (1183, 18565), (1645, 13351), (2765, 7943), (3055, 7189), (3713, 5915), (4277, 5135)]