213472519

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1109}}^1$

素因数の和:1219

約数の個数: 24

約数和(自身を含む): 248631120

約数和(自身を除く): 35158601

約数列:

[1, 13, 17, 67, 169, 221, 871, 1109, 1139, 2873, 11323, 14417, 14807, 18853, 74303, 187421, 192491, 245089, 965939, 1263151, 3186157, 12557207, 16420963, 213472519]

約数ペア:

[(1, 213472519), (13, 16420963), (17, 12557207), (67, 3186157), (169, 1263151), (221, 965939), (871, 245089), (1109, 192491), (1139, 187421), (2873, 74303), (11323, 18853), (14417, 14807)]