20887755

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{601}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 38373888

約数和(自身を除く): 17486133

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 331, 601, 993, 1655, 1803, 2317, 3005, 4207, 4965, 6951, 9015, 11585, 12621, 21035, 34755, 63105, 198931, 596793, 994655, 1392517, 2983965, 4177551, 6962585, 20887755]

約数ペア:

[(1, 20887755), (3, 6962585), (5, 4177551), (7, 2983965), (15, 1392517), (21, 994655), (35, 596793), (105, 198931), (331, 63105), (601, 34755), (993, 21035), (1655, 12621), (1803, 11585), (2317, 9015), (3005, 6951), (4207, 4965)]