19852875

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{2521}}^1$

素因数の和:2549

約数の個数: 48

約数和(自身を含む): 40916928

約数和(自身を除く): 21064053

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 175, 225, 315, 375, 525, 875, 1125, 1575, 2521, 2625, 7563, 7875, 12605, 17647, 22689, 37815, 52941, 63025, 88235, 113445, 158823, 189075, 264705, 315125, 441175, 567225, 794115, 945375, 1323525, 2205875, 2836125, 3970575, 6617625, 19852875]

約数ペア:

[(1, 19852875), (3, 6617625), (5, 3970575), (7, 2836125), (9, 2205875), (15, 1323525), (21, 945375), (25, 794115), (35, 567225), (45, 441175), (63, 315125), (75, 264705), (105, 189075), (125, 158823), (175, 113445), (225, 88235), (315, 63025), (375, 52941), (525, 37815), (875, 22689), (1125, 17647), (1575, 12605), (2521, 7875), (2625, 7563)]