18398421

素因数分解:

$3^4\times {\mathrm{197}}^1\times {\mathrm{1153}}^1$

素因数の和:1362

約数の個数: 20

約数和(自身を含む): 27647532

約数和(自身を除く): 9249111

約数列:

[1, 3, 9, 27, 81, 197, 591, 1153, 1773, 3459, 5319, 10377, 15957, 31131, 93393, 227141, 681423, 2044269, 6132807, 18398421]

約数ペア:

[(1, 18398421), (3, 6132807), (9, 2044269), (27, 681423), (81, 227141), (197, 93393), (591, 31131), (1153, 15957), (1773, 10377), (3459, 5319)]