21621965

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{3637}}^1$

素因数の和:3712

約数の個数: 16

約数和(自身を含む): 27503280

約数和(自身を除く): 5881315

約数列:

[1, 5, 29, 41, 145, 205, 1189, 3637, 5945, 18185, 105473, 149117, 527365, 745585, 4324393, 21621965]

約数ペア:

[(1, 21621965), (5, 4324393), (29, 745585), (41, 527365), (145, 149117), (205, 105473), (1189, 18185), (3637, 5945)]