81606987

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2309}}^1$

素因数の和:2353

約数の個数: 64

約数和(自身を含む): 159667200

約数和(自身を除く): 78060213

約数列:

[1, 3, 7, 9, 11, 17, 21, 27, 33, 51, 63, 77, 99, 119, 153, 187, 189, 231, 297, 357, 459, 561, 693, 1071, 1309, 1683, 2079, 2309, 3213, 3927, 5049, 6927, 11781, 16163, 20781, 25399, 35343, 39253, 48489, 62343, 76197, 117759, 145467, 177793, 228591, 274771, 353277, 431783, 436401, 533379, 685773, 824313, 1059831, 1295349, 1600137, 2472939, 3022481, 3886047, 4800411, 7418817, 9067443, 11658141, 27202329, 81606987]

約数ペア:

[(1, 81606987), (3, 27202329), (7, 11658141), (9, 9067443), (11, 7418817), (17, 4800411), (21, 3886047), (27, 3022481), (33, 2472939), (51, 1600137), (63, 1295349), (77, 1059831), (99, 824313), (119, 685773), (153, 533379), (187, 436401), (189, 431783), (231, 353277), (297, 274771), (357, 228591), (459, 177793), (561, 145467), (693, 117759), (1071, 76197), (1309, 62343), (1683, 48489), (2079, 39253), (2309, 35343), (3213, 25399), (3927, 20781), (5049, 16163), (6927, 11781)]