18814768

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5419}}^1$

素因数の和:5465

約数の個数: 40

約数和(自身を含む): 43013120

約数和(自身を除く): 24198352

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 5419, 10838, 21676, 37933, 43352, 75866, 86704, 151732, 167989, 303464, 335978, 606928, 671956, 1175923, 1343912, 2351846, 2687824, 4703692, 9407384, 18814768]

約数ペア:

[(1, 18814768), (2, 9407384), (4, 4703692), (7, 2687824), (8, 2351846), (14, 1343912), (16, 1175923), (28, 671956), (31, 606928), (56, 335978), (62, 303464), (112, 167989), (124, 151732), (217, 86704), (248, 75866), (434, 43352), (496, 37933), (868, 21676), (1736, 10838), (3472, 5419)]