20505996

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{81373}}^1$

素因数の和:81390

約数の個数: 36

約数和(自身を含む): 59240272

約数和(自身を除く): 38734276

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 81373, 162746, 244119, 325492, 488238, 569611, 732357, 976476, 1139222, 1464714, 1708833, 2278444, 2929428, 3417666, 5126499, 6835332, 10252998, 20505996]

約数ペア:

[(1, 20505996), (2, 10252998), (3, 6835332), (4, 5126499), (6, 3417666), (7, 2929428), (9, 2278444), (12, 1708833), (14, 1464714), (18, 1139222), (21, 976476), (28, 732357), (36, 569611), (42, 488238), (63, 325492), (84, 244119), (126, 162746), (252, 81373)]