28569321

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 21197079

約数列:

[1, 3, 9, 11, 27, 29, 31, 33, 87, 93, 99, 107, 261, 279, 297, 319, 321, 341, 783, 837, 899, 957, 963, 1023, 1177, 2697, 2871, 2889, 3069, 3103, 3317, 3531, 8091, 8613, 9207, 9309, 9889, 9951, 10593, 24273, 27927, 29667, 29853, 31779, 34133, 36487, 83781, 89001, 89559, 96193, 102399, 109461, 267003, 288579, 307197, 328383, 865737, 921591, 985149, 1058123, 2597211, 3174369, 9523107, 28569321]

約数ペア:

[(1, 28569321), (3, 9523107), (9, 3174369), (11, 2597211), (27, 1058123), (29, 985149), (31, 921591), (33, 865737), (87, 328383), (93, 307197), (99, 288579), (107, 267003), (261, 109461), (279, 102399), (297, 96193), (319, 89559), (321, 89001), (341, 83781), (783, 36487), (837, 34133), (899, 31779), (957, 29853), (963, 29667), (1023, 27927), (1177, 24273), (2697, 10593), (2871, 9951), (2889, 9889), (3069, 9309), (3103, 9207), (3317, 8613), (3531, 8091)]