219403785

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37409}}^1$

素因数の和:37457

約数の個数: 32

約数和(自身を含む): 387866880

約数和(自身を除く): 168463095

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 5865, 37409, 112227, 187045, 561135, 635953, 860407, 1907859, 2581221, 3179765, 4302035, 9539295, 12906105, 14626919, 43880757, 73134595, 219403785]

約数ペア:

[(1, 219403785), (3, 73134595), (5, 43880757), (15, 14626919), (17, 12906105), (23, 9539295), (51, 4302035), (69, 3179765), (85, 2581221), (115, 1907859), (255, 860407), (345, 635953), (391, 561135), (1173, 187045), (1955, 112227), (5865, 37409)]