20917594

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7753}}^1$

素因数の和:7845

約数の個数: 16

約数和(自身を含む): 33497280

約数和(自身を除く): 12579686

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 7753, 15506, 147307, 294614, 550463, 1100926, 10458797, 20917594]

約数ペア:

[(1, 20917594), (2, 10458797), (19, 1100926), (38, 550463), (71, 294614), (142, 147307), (1349, 15506), (2698, 7753)]