21708470

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{6329}}^1$

素因数の和:6357

約数の個数: 32

約数和(自身を含む): 45576000

約数和(自身を除く): 23867530

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 6329, 12658, 31645, 44303, 63290, 88606, 221515, 310121, 443030, 620242, 1550605, 2170847, 3101210, 4341694, 10854235, 21708470]

約数ペア:

[(1, 21708470), (2, 10854235), (5, 4341694), (7, 3101210), (10, 2170847), (14, 1550605), (35, 620242), (49, 443030), (70, 310121), (98, 221515), (245, 88606), (343, 63290), (490, 44303), (686, 31645), (1715, 12658), (3430, 6329)]