19402695

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1951}}^1$

素因数の和:1992

約数の個数: 48

約数和(自身を含む): 38368512

約数和(自身を除く): 18965817

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1951, 1989, 3315, 5853, 9755, 9945, 17559, 25363, 29265, 33167, 76089, 87795, 99501, 126815, 165835, 228267, 298503, 380445, 431171, 497505, 1141335, 1293513, 1492515, 2155855, 3880539, 6467565, 19402695]

約数ペア:

[(1, 19402695), (3, 6467565), (5, 3880539), (9, 2155855), (13, 1492515), (15, 1293513), (17, 1141335), (39, 497505), (45, 431171), (51, 380445), (65, 298503), (85, 228267), (117, 165835), (153, 126815), (195, 99501), (221, 87795), (255, 76089), (585, 33167), (663, 29265), (765, 25363), (1105, 17559), (1951, 9945), (1989, 9755), (3315, 5853)]