21805812

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{86531}}^1$

素因数の和:86548

約数の個数: 36

約数和(自身を含む): 62995296

約数和(自身を除く): 41189484

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 86531, 173062, 259593, 346124, 519186, 605717, 778779, 1038372, 1211434, 1557558, 1817151, 2422868, 3115116, 3634302, 5451453, 7268604, 10902906, 21805812]

約数ペア:

[(1, 21805812), (2, 10902906), (3, 7268604), (4, 5451453), (6, 3634302), (7, 3115116), (9, 2422868), (12, 1817151), (14, 1557558), (18, 1211434), (21, 1038372), (28, 778779), (36, 605717), (42, 519186), (63, 346124), (84, 259593), (126, 173062), (252, 86531)]