663669945

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{641227}}^1$

素因数の和:641261

約数の個数: 24

約数和(自身を含む): 1200378816

約数和(自身を除く): 536708871

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 641227, 1923681, 3206135, 5771043, 9618405, 14748221, 28855215, 44244663, 73741105, 132733989, 221223315, 663669945]

約数ペア:

[(1, 663669945), (3, 221223315), (5, 132733989), (9, 73741105), (15, 44244663), (23, 28855215), (45, 14748221), (69, 9618405), (115, 5771043), (207, 3206135), (345, 1923681), (1035, 641227)]