19976215

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{19681}}^1$

素因数の和:19722

約数の個数: 16

約数和(自身を含む): 28342080

約数和(自身を除く): 8365865

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 19681, 98405, 137767, 570749, 688835, 2853745, 3995243, 19976215]

約数ペア:

[(1, 19976215), (5, 3995243), (7, 2853745), (29, 688835), (35, 570749), (145, 137767), (203, 98405), (1015, 19681)]