21072876

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{631}}^1$

素因数の和:683

約数の個数: 72

約数和(自身を含む): 56485632

約数和(自身を除く): 35412756

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 23, 33, 44, 46, 66, 69, 92, 121, 132, 138, 242, 253, 276, 363, 484, 506, 631, 726, 759, 1012, 1262, 1452, 1518, 1893, 2524, 2783, 3036, 3786, 5566, 6941, 7572, 8349, 11132, 13882, 14513, 16698, 20823, 27764, 29026, 33396, 41646, 43539, 58052, 76351, 83292, 87078, 152702, 159643, 174156, 229053, 305404, 319286, 458106, 478929, 638572, 916212, 957858, 1756073, 1915716, 3512146, 5268219, 7024292, 10536438, 21072876]

約数ペア:

[(1, 21072876), (2, 10536438), (3, 7024292), (4, 5268219), (6, 3512146), (11, 1915716), (12, 1756073), (22, 957858), (23, 916212), (33, 638572), (44, 478929), (46, 458106), (66, 319286), (69, 305404), (92, 229053), (121, 174156), (132, 159643), (138, 152702), (242, 87078), (253, 83292), (276, 76351), (363, 58052), (484, 43539), (506, 41646), (631, 33396), (726, 29026), (759, 27764), (1012, 20823), (1262, 16698), (1452, 14513), (1518, 13882), (1893, 11132), (2524, 8349), (2783, 7572), (3036, 6941), (3786, 5566)]