2021521628

素因数分解:

$2^2\times 7^1\times {\mathrm{72197201}}^1$

素因数の和:72197212

約数の個数: 12

約数和(自身を含む): 4043043312

約数和(自身を除く): 2021521684

約数列:

[1, 2, 4, 7, 14, 28, 72197201, 144394402, 288788804, 505380407, 1010760814, 2021521628]

約数ペア:

[(1, 2021521628), (2, 1010760814), (4, 505380407), (7, 288788804), (14, 144394402), (28, 72197201)]