21001218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{500029}}^1$

素因数の和:500041

約数の個数: 16

約数和(自身を含む): 48002880

約数和(自身を除く): 27001662

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 500029, 1000058, 1500087, 3000174, 3500203, 7000406, 10500609, 21001218]

約数ペア:

[(1, 21001218), (2, 10500609), (3, 7000406), (6, 3500203), (7, 3000174), (14, 1500087), (21, 1000058), (42, 500029)]