20878365

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{829}}^1$

素因数の和:933

約数の個数: 32

約数和(自身を含む): 35377920

約数和(自身を除く): 14499555

約数列:

[1, 3, 5, 15, 23, 69, 73, 115, 219, 345, 365, 829, 1095, 1679, 2487, 4145, 5037, 8395, 12435, 19067, 25185, 57201, 60517, 95335, 181551, 286005, 302585, 907755, 1391891, 4175673, 6959455, 20878365]

約数ペア:

[(1, 20878365), (3, 6959455), (5, 4175673), (15, 1391891), (23, 907755), (69, 302585), (73, 286005), (115, 181551), (219, 95335), (345, 60517), (365, 57201), (829, 25185), (1095, 19067), (1679, 12435), (2487, 8395), (4145, 5037)]