21020340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31849}}^1$

素因数の和:31872

約数の個数: 48

約数和(自身を含む): 64209600

約数和(自身を除く): 43189260

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31849, 63698, 95547, 127396, 159245, 191094, 318490, 350339, 382188, 477735, 636980, 700678, 955470, 1051017, 1401356, 1751695, 1910940, 2102034, 3503390, 4204068, 5255085, 7006780, 10510170, 21020340]

約数ペア:

[(1, 21020340), (2, 10510170), (3, 7006780), (4, 5255085), (5, 4204068), (6, 3503390), (10, 2102034), (11, 1910940), (12, 1751695), (15, 1401356), (20, 1051017), (22, 955470), (30, 700678), (33, 636980), (44, 477735), (55, 382188), (60, 350339), (66, 318490), (110, 191094), (132, 159245), (165, 127396), (220, 95547), (330, 63698), (660, 31849)]