217088963

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20047}}^1$

素因数の和:20091

約数の個数: 24

約数和(自身を含む): 287969472

約数和(自身を除く): 70880509

約数列:

[1, 7, 13, 17, 49, 91, 119, 221, 637, 833, 1547, 10829, 20047, 140329, 260611, 340799, 982303, 1824277, 2385593, 4430387, 12769939, 16699151, 31012709, 217088963]

約数ペア:

[(1, 217088963), (7, 31012709), (13, 16699151), (17, 12769939), (49, 4430387), (91, 2385593), (119, 1824277), (221, 982303), (637, 340799), (833, 260611), (1547, 140329), (10829, 20047)]