20982290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42821}}^1$

素因数の和:42842

約数の個数: 24

約数和(自身を含む): 43935372

約数和(自身を除く): 22953082

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42821, 85642, 214105, 299747, 428210, 599494, 1498735, 2098229, 2997470, 4196458, 10491145, 20982290]

約数ペア:

[(1, 20982290), (2, 10491145), (5, 4196458), (7, 2997470), (10, 2098229), (14, 1498735), (35, 599494), (49, 428210), (70, 299747), (98, 214105), (245, 85642), (490, 42821)]