21881052

素因数分解:

$2^2\times 3^2\times {\mathrm{397}}^1\times {\mathrm{1531}}^1$

素因数の和:1938

約数の個数: 36

約数和(自身を含む): 55485976

約数和(自身を除く): 33604924

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 397, 794, 1191, 1531, 1588, 2382, 3062, 3573, 4593, 4764, 6124, 7146, 9186, 13779, 14292, 18372, 27558, 55116, 607807, 1215614, 1823421, 2431228, 3646842, 5470263, 7293684, 10940526, 21881052]

約数ペア:

[(1, 21881052), (2, 10940526), (3, 7293684), (4, 5470263), (6, 3646842), (9, 2431228), (12, 1823421), (18, 1215614), (36, 607807), (397, 55116), (794, 27558), (1191, 18372), (1531, 14292), (1588, 13779), (2382, 9186), (3062, 7146), (3573, 6124), (4593, 4764)]