21077340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{351289}}^1$

素因数の和:351301

約数の個数: 24

約数和(自身を含む): 59016720

約数和(自身を除く): 37939380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 351289, 702578, 1053867, 1405156, 1756445, 2107734, 3512890, 4215468, 5269335, 7025780, 10538670, 21077340]

約数ペア:

[(1, 21077340), (2, 10538670), (3, 7025780), (4, 5269335), (5, 4215468), (6, 3512890), (10, 2107734), (12, 1756445), (15, 1405156), (20, 1053867), (30, 702578), (60, 351289)]