28654857

素因数分解:

$3^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{179}}^1$

素因数の和:224

約数の個数: 72

約数和(自身を含む): 54583200

約数和(自身を除く): 25928343

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 99, 121, 147, 179, 189, 231, 297, 363, 441, 537, 539, 693, 847, 1089, 1253, 1323, 1611, 1617, 1969, 2079, 2541, 3267, 3759, 4833, 4851, 5907, 5929, 7623, 8771, 11277, 13783, 14553, 17721, 17787, 21659, 22869, 26313, 33831, 41349, 53163, 53361, 64977, 78939, 96481, 124047, 151613, 160083, 194931, 236817, 289443, 372141, 454839, 584793, 868329, 1061291, 1364517, 2604987, 3183873, 4093551, 9551619, 28654857]

約数ペア:

[(1, 28654857), (3, 9551619), (7, 4093551), (9, 3183873), (11, 2604987), (21, 1364517), (27, 1061291), (33, 868329), (49, 584793), (63, 454839), (77, 372141), (99, 289443), (121, 236817), (147, 194931), (179, 160083), (189, 151613), (231, 124047), (297, 96481), (363, 78939), (441, 64977), (537, 53361), (539, 53163), (693, 41349), (847, 33831), (1089, 26313), (1253, 22869), (1323, 21659), (1611, 17787), (1617, 17721), (1969, 14553), (2079, 13783), (2541, 11277), (3267, 8771), (3759, 7623), (4833, 5929), (4851, 5907)]