21966315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{209203}}^1$

素因数の和:209218

約数の個数: 16

約数和(自身を含む): 40167168

約数和(自身を除く): 18200853

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 209203, 627609, 1046015, 1464421, 3138045, 4393263, 7322105, 21966315]

約数ペア:

[(1, 21966315), (3, 7322105), (5, 4393263), (7, 3138045), (15, 1464421), (21, 1046015), (35, 627609), (105, 209203)]