2721705

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{23}}^2$

素因数の和:75

約数の個数: 48

約数和(自身を含む): 5308800

約数和(自身を除く): 2587095

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 49, 69, 105, 115, 147, 161, 245, 343, 345, 483, 529, 735, 805, 1029, 1127, 1587, 1715, 2415, 2645, 3381, 3703, 5145, 5635, 7889, 7935, 11109, 16905, 18515, 23667, 25921, 39445, 55545, 77763, 118335, 129605, 181447, 388815, 544341, 907235, 2721705]

約数ペア:

[(1, 2721705), (3, 907235), (5, 544341), (7, 388815), (15, 181447), (21, 129605), (23, 118335), (35, 77763), (49, 55545), (69, 39445), (105, 25921), (115, 23667), (147, 18515), (161, 16905), (245, 11109), (343, 7935), (345, 7889), (483, 5635), (529, 5145), (735, 3703), (805, 3381), (1029, 2645), (1127, 2415), (1587, 1715)]