2021521670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{28878881}}^1$

素因数の和:28878895

約数の個数: 16

約数和(自身を含む): 4158559008

約数和(自身を除く): 2137037338

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 28878881, 57757762, 144394405, 202152167, 288788810, 404304334, 1010760835, 2021521670]

約数ペア:

[(1, 2021521670), (2, 1010760835), (5, 404304334), (7, 288788810), (10, 202152167), (14, 144394405), (35, 57757762), (70, 28878881)]