20123781399

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{647}}^1\times {\mathrm{67763}}^1$

素因数の和:68436

約数の個数: 32

約数和(自身を含む): 31615971840

約数和(自身を除く): 11492190441

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 647, 1941, 5823, 10999, 17469, 32997, 67763, 98991, 203289, 296973, 609867, 1151971, 1829601, 3455913, 10367739, 31103217, 43842661, 131527983, 394583949, 745325237, 1183751847, 2235975711, 6707927133, 20123781399]

約数ペア:

[(1, 20123781399), (3, 6707927133), (9, 2235975711), (17, 1183751847), (27, 745325237), (51, 394583949), (153, 131527983), (459, 43842661), (647, 31103217), (1941, 10367739), (5823, 3455913), (10999, 1829601), (17469, 1151971), (32997, 609867), (67763, 296973), (98991, 203289)]