20827768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4261}}^1$

素因数の和:4327

約数の個数: 32

約数和(自身を含む): 42960960

約数和(自身を除く): 22133192

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 188, 376, 611, 1222, 2444, 4261, 4888, 8522, 17044, 34088, 55393, 110786, 200267, 221572, 400534, 443144, 801068, 1602136, 2603471, 5206942, 10413884, 20827768]

約数ペア:

[(1, 20827768), (2, 10413884), (4, 5206942), (8, 2603471), (13, 1602136), (26, 801068), (47, 443144), (52, 400534), (94, 221572), (104, 200267), (188, 110786), (376, 55393), (611, 34088), (1222, 17044), (2444, 8522), (4261, 4888)]