20403656

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28027}}^1$

素因数の和:28053

約数の個数: 32

約数和(自身を含む): 47087040

約数和(自身を除く): 26683384

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28027, 56054, 112108, 196189, 224216, 364351, 392378, 728702, 784756, 1457404, 1569512, 2550457, 2914808, 5100914, 10201828, 20403656]

約数ペア:

[(1, 20403656), (2, 10201828), (4, 5100914), (7, 2914808), (8, 2550457), (13, 1569512), (14, 1457404), (26, 784756), (28, 728702), (52, 392378), (56, 364351), (91, 224216), (104, 196189), (182, 112108), (364, 56054), (728, 28027)]