201720447

素因数分解:

$3^2\times {\mathrm{151}}^2\times {\mathrm{983}}^1$

素因数の和:1291

約数の個数: 18

約数和(自身を含む): 293614776

約数和(自身を除く): 91894329

約数列:

[1, 3, 9, 151, 453, 983, 1359, 2949, 8847, 22801, 68403, 148433, 205209, 445299, 1335897, 22413383, 67240149, 201720447]

約数ペア:

[(1, 201720447), (3, 67240149), (9, 22413383), (151, 1335897), (453, 445299), (983, 205209), (1359, 148433), (2949, 68403), (8847, 22801)]