21356258

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1801}}^1$

素因数の和:1839

約数の個数: 36

約数和(自身を含む): 40982886

約数和(自身を除く): 19626628

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 121, 154, 242, 539, 847, 1078, 1694, 1801, 3602, 5929, 11858, 12607, 19811, 25214, 39622, 88249, 138677, 176498, 217921, 277354, 435842, 970739, 1525447, 1941478, 3050894, 10678129, 21356258]

約数ペア:

[(1, 21356258), (2, 10678129), (7, 3050894), (11, 1941478), (14, 1525447), (22, 970739), (49, 435842), (77, 277354), (98, 217921), (121, 176498), (154, 138677), (242, 88249), (539, 39622), (847, 25214), (1078, 19811), (1694, 12607), (1801, 11858), (3602, 5929)]