18399997

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1213}}^1$

素因数の和:1428

約数の個数: 16

約数和(自身を含む): 23075712

約数和(自身を除く): 4675715

約数列:

[1, 7, 11, 77, 197, 1213, 1379, 2167, 8491, 13343, 15169, 93401, 238961, 1672727, 2628571, 18399997]

約数ペア:

[(1, 18399997), (7, 2628571), (11, 1672727), (77, 238961), (197, 93401), (1213, 15169), (1379, 13343), (2167, 8491)]