20749645

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{20443}}^1$

素因数の和:20484

約数の個数: 16

約数和(自身を含む): 29439360

約数和(自身を除く): 8689715

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 20443, 102215, 143101, 592847, 715505, 2964235, 4149929, 20749645]

約数ペア:

[(1, 20749645), (5, 4149929), (7, 2964235), (29, 715505), (35, 592847), (145, 143101), (203, 102215), (1015, 20443)]