21223293

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{269}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 37134720

約数和(自身を除く): 15911427

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 269, 273, 289, 357, 663, 807, 867, 1547, 1883, 2023, 3497, 3757, 4573, 4641, 5649, 6069, 10491, 11271, 13719, 24479, 26299, 32011, 59449, 73437, 77741, 78897, 96033, 178347, 233223, 416143, 544187, 1010633, 1248429, 1632561, 3031899, 7074431, 21223293]

約数ペア:

[(1, 21223293), (3, 7074431), (7, 3031899), (13, 1632561), (17, 1248429), (21, 1010633), (39, 544187), (51, 416143), (91, 233223), (119, 178347), (221, 96033), (269, 78897), (273, 77741), (289, 73437), (357, 59449), (663, 32011), (807, 26299), (867, 24479), (1547, 13719), (1883, 11271), (2023, 10491), (3497, 6069), (3757, 5649), (4573, 4641)]