20155599

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{379}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 30825600

約数和(自身を除く): 10670001

約数列:

[1, 3, 9, 19, 57, 171, 311, 379, 933, 1137, 2799, 3411, 5909, 7201, 17727, 21603, 53181, 64809, 117869, 353607, 1060821, 2239511, 6718533, 20155599]

約数ペア:

[(1, 20155599), (3, 6718533), (9, 2239511), (19, 1060821), (57, 353607), (171, 117869), (311, 64809), (379, 53181), (933, 21603), (1137, 17727), (2799, 7201), (3411, 5909)]