20490975

素因数分解:

$3^5\times 5^2\times {\mathrm{3373}}^1$

素因数の和:3398

約数の個数: 36

約数和(自身を含む): 38072216

約数和(自身を除く): 17581241

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1215, 2025, 3373, 6075, 10119, 16865, 30357, 50595, 84325, 91071, 151785, 252975, 273213, 455355, 758925, 819639, 1366065, 2276775, 4098195, 6830325, 20490975]

約数ペア:

[(1, 20490975), (3, 6830325), (5, 4098195), (9, 2276775), (15, 1366065), (25, 819639), (27, 758925), (45, 455355), (75, 273213), (81, 252975), (135, 151785), (225, 91071), (243, 84325), (405, 50595), (675, 30357), (1215, 16865), (2025, 10119), (3373, 6075)]