20819768

素因数分解:

$2^3\times {\mathrm{239}}^1\times {\mathrm{10889}}^1$

素因数の和:11134

約数の個数: 16

約数和(自身を含む): 39204000

約数和(自身を除く): 18384232

約数列:

[1, 2, 4, 8, 239, 478, 956, 1912, 10889, 21778, 43556, 87112, 2602471, 5204942, 10409884, 20819768]

約数ペア:

[(1, 20819768), (2, 10409884), (4, 5204942), (8, 2602471), (239, 87112), (478, 43556), (956, 21778), (1912, 10889)]