21890835

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5861}}^1$

素因数の和:5955

約数の個数: 24

約数和(自身を含む): 38407824

約数和(自身を除く): 16516989

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 5861, 17583, 29305, 52749, 87915, 263745, 486463, 1459389, 2432315, 4378167, 7296945, 21890835]

約数ペア:

[(1, 21890835), (3, 7296945), (5, 4378167), (9, 2432315), (15, 1459389), (45, 486463), (83, 263745), (249, 87915), (415, 52749), (747, 29305), (1245, 17583), (3735, 5861)]