21550886

素因数分解:

$2^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{7583}}^1$

素因数の和:7628

約数の個数: 24

約数和(自身を含む): 38905920

約数和(自身を除く): 17355034

約数列:

[1, 2, 7, 14, 29, 49, 58, 98, 203, 406, 1421, 2842, 7583, 15166, 53081, 106162, 219907, 371567, 439814, 743134, 1539349, 3078698, 10775443, 21550886]

約数ペア:

[(1, 21550886), (2, 10775443), (7, 3078698), (14, 1539349), (29, 743134), (49, 439814), (58, 371567), (98, 219907), (203, 106162), (406, 53081), (1421, 15166), (2842, 7583)]