19963696

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{29017}}^1$

素因数の和:29068

約数の個数: 20

約数和(自身を含む): 39580552

約数和(自身を除く): 19616856

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 29017, 58034, 116068, 232136, 464272, 1247731, 2495462, 4990924, 9981848, 19963696]

約数ペア:

[(1, 19963696), (2, 9981848), (4, 4990924), (8, 2495462), (16, 1247731), (43, 464272), (86, 232136), (172, 116068), (344, 58034), (688, 29017)]