19779075

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{5171}}^1$

素因数の和:5204

約数の個数: 36

約数和(自身を含む): 37517688

約数和(自身を除く): 17738613

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 5171, 15513, 25855, 46539, 77565, 87907, 129275, 232695, 263721, 387825, 439535, 791163, 1163475, 1318605, 2197675, 3955815, 6593025, 19779075]

約数ペア:

[(1, 19779075), (3, 6593025), (5, 3955815), (9, 2197675), (15, 1318605), (17, 1163475), (25, 791163), (45, 439535), (51, 387825), (75, 263721), (85, 232695), (153, 129275), (225, 87907), (255, 77565), (425, 46539), (765, 25855), (1275, 15513), (3825, 5171)]