20784894

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{607}}^1$

素因数の和:1064

約数の個数: 32

約数和(自身を含む): 44943360

約数和(自身を除く): 24158466

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 439, 607, 878, 1214, 1317, 1821, 2634, 3642, 5707, 7891, 11414, 15782, 17121, 23673, 34242, 47346, 266473, 532946, 799419, 1598838, 3464149, 6928298, 10392447, 20784894]

約数ペア:

[(1, 20784894), (2, 10392447), (3, 6928298), (6, 3464149), (13, 1598838), (26, 799419), (39, 532946), (78, 266473), (439, 47346), (607, 34242), (878, 23673), (1214, 17121), (1317, 15782), (1821, 11414), (2634, 7891), (3642, 5707)]