21805490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{44501}}^1$

素因数の和:44522

約数の個数: 24

約数和(自身を含む): 45659052

約数和(自身を除く): 23853562

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 44501, 89002, 222505, 311507, 445010, 623014, 1557535, 2180549, 3115070, 4361098, 10902745, 21805490]

約数ペア:

[(1, 21805490), (2, 10902745), (5, 4361098), (7, 3115070), (10, 2180549), (14, 1557535), (35, 623014), (49, 445010), (70, 311507), (98, 222505), (245, 89002), (490, 44501)]