12990813

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20719}}^1$

素因数の和:20752

約数の個数: 16

約数和(自身を含む): 19891200

約数和(自身を除く): 6900387

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 20719, 62157, 227909, 393661, 683727, 1180983, 4330271, 12990813]

約数ペア:

[(1, 12990813), (3, 4330271), (11, 1180983), (19, 683727), (33, 393661), (57, 227909), (209, 62157), (627, 20719)]