20397585

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3607}}^1$

素因数の和:3657

約数の個数: 32

約数和(自身を含む): 36368640

約数和(自身を除く): 15971055

約数列:

[1, 3, 5, 13, 15, 29, 39, 65, 87, 145, 195, 377, 435, 1131, 1885, 3607, 5655, 10821, 18035, 46891, 54105, 104603, 140673, 234455, 313809, 523015, 703365, 1359839, 1569045, 4079517, 6799195, 20397585]

約数ペア:

[(1, 20397585), (3, 6799195), (5, 4079517), (13, 1569045), (15, 1359839), (29, 703365), (39, 523015), (65, 313809), (87, 234455), (145, 140673), (195, 104603), (377, 54105), (435, 46891), (1131, 18035), (1885, 10821), (3607, 5655)]