20897986

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{11701}}^1$

素因数の和:11769

約数の個数: 16

約数和(自身を含む): 33701760

約数和(自身を除く): 12803774

約数列:

[1, 2, 19, 38, 47, 94, 893, 1786, 11701, 23402, 222319, 444638, 549947, 1099894, 10448993, 20897986]

約数ペア:

[(1, 20897986), (2, 10448993), (19, 1099894), (38, 549947), (47, 444638), (94, 222319), (893, 23402), (1786, 11701)]