20157182871

素因数分解:

$3^1\times 7^3\times {\mathrm{2293}}^1\times {\mathrm{8543}}^1$

素因数の和:10860

約数の個数: 32

約数和(自身を含む): 31359897600

約数和(自身を除く): 11202714729

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2293, 6879, 8543, 16051, 25629, 48153, 59801, 112357, 179403, 337071, 418607, 786499, 1255821, 2359497, 2930249, 8790747, 19589099, 58767297, 137123693, 411371079, 959865851, 2879597553, 6719060957, 20157182871]

約数ペア:

[(1, 20157182871), (3, 6719060957), (7, 2879597553), (21, 959865851), (49, 411371079), (147, 137123693), (343, 58767297), (1029, 19589099), (2293, 8790747), (6879, 2930249), (8543, 2359497), (16051, 1255821), (25629, 786499), (48153, 418607), (59801, 337071), (112357, 179403)]