21028068

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 55194048

約数和(自身を除く): 34165980

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 103, 106, 107, 159, 206, 212, 214, 309, 318, 321, 412, 428, 477, 618, 636, 642, 927, 954, 963, 1236, 1284, 1854, 1908, 1926, 3708, 3852, 5459, 5671, 10918, 11021, 11342, 16377, 17013, 21836, 22042, 22684, 32754, 33063, 34026, 44084, 49131, 51039, 65508, 66126, 68052, 98262, 99189, 102078, 132252, 196524, 198378, 204156, 396756, 584113, 1168226, 1752339, 2336452, 3504678, 5257017, 7009356, 10514034, 21028068]

約数ペア:

[(1, 21028068), (2, 10514034), (3, 7009356), (4, 5257017), (6, 3504678), (9, 2336452), (12, 1752339), (18, 1168226), (36, 584113), (53, 396756), (103, 204156), (106, 198378), (107, 196524), (159, 132252), (206, 102078), (212, 99189), (214, 98262), (309, 68052), (318, 66126), (321, 65508), (412, 51039), (428, 49131), (477, 44084), (618, 34026), (636, 33063), (642, 32754), (927, 22684), (954, 22042), (963, 21836), (1236, 17013), (1284, 16377), (1854, 11342), (1908, 11021), (1926, 10918), (3708, 5671), (3852, 5459)]