217278321

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{1049}}^1$

素因数の和:1225

約数の個数: 32

約数和(自身を含む): 321753600

約数和(自身を除く): 104475279

約数列:

[1, 3, 13, 39, 47, 113, 141, 339, 611, 1049, 1469, 1833, 3147, 4407, 5311, 13637, 15933, 40911, 49303, 69043, 118537, 147909, 207129, 355611, 640939, 1540981, 1922817, 4622943, 5571239, 16713717, 72426107, 217278321]

約数ペア:

[(1, 217278321), (3, 72426107), (13, 16713717), (39, 5571239), (47, 4622943), (113, 1922817), (141, 1540981), (339, 640939), (611, 355611), (1049, 207129), (1469, 147909), (1833, 118537), (3147, 69043), (4407, 49303), (5311, 40911), (13637, 15933)]