20853495

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{829}}^1$

素因数の和:896

約数の個数: 48

約数和(自身を含む): 39879840

約数和(自身を除く): 19026345

約数列:

[1, 3, 5, 9, 13, 15, 39, 43, 45, 65, 117, 129, 195, 215, 387, 559, 585, 645, 829, 1677, 1935, 2487, 2795, 4145, 5031, 7461, 8385, 10777, 12435, 25155, 32331, 35647, 37305, 53885, 96993, 106941, 161655, 178235, 320823, 463411, 484965, 534705, 1390233, 1604115, 2317055, 4170699, 6951165, 20853495]

約数ペア:

[(1, 20853495), (3, 6951165), (5, 4170699), (9, 2317055), (13, 1604115), (15, 1390233), (39, 534705), (43, 484965), (45, 463411), (65, 320823), (117, 178235), (129, 161655), (195, 106941), (215, 96993), (387, 53885), (559, 37305), (585, 35647), (645, 32331), (829, 25155), (1677, 12435), (1935, 10777), (2487, 8385), (2795, 7461), (4145, 5031)]