21950871

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{4327}}^1$

素因数の和:4438

約数の個数: 16

約数和(自身を含む): 31161600

約数和(自身を除く): 9210729

約数列:

[1, 3, 19, 57, 89, 267, 1691, 4327, 5073, 12981, 82213, 246639, 385103, 1155309, 7316957, 21950871]

約数ペア:

[(1, 21950871), (3, 7316957), (19, 1155309), (57, 385103), (89, 246639), (267, 82213), (1691, 12981), (4327, 5073)]