21651098

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{90971}}^1$

素因数の和:90997

約数の個数: 16

約数和(自身を含む): 39299904

約数和(自身を除く): 17648806

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 90971, 181942, 636797, 1273594, 1546507, 3093014, 10825549, 21651098]

約数ペア:

[(1, 21651098), (2, 10825549), (7, 3093014), (14, 1546507), (17, 1273594), (34, 636797), (119, 181942), (238, 90971)]