21880206

素因数分解:

$2^1\times 3^6\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:412

約数の個数: 56

約数和(自身を含む): 50496600

約数和(自身を除く): 28616394

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 81, 86, 129, 162, 243, 258, 349, 387, 486, 698, 729, 774, 1047, 1161, 1458, 2094, 2322, 3141, 3483, 6282, 6966, 9423, 10449, 15007, 18846, 20898, 28269, 30014, 31347, 45021, 56538, 62694, 84807, 90042, 135063, 169614, 254421, 270126, 405189, 508842, 810378, 1215567, 2431134, 3646701, 7293402, 10940103, 21880206]

約数ペア:

[(1, 21880206), (2, 10940103), (3, 7293402), (6, 3646701), (9, 2431134), (18, 1215567), (27, 810378), (43, 508842), (54, 405189), (81, 270126), (86, 254421), (129, 169614), (162, 135063), (243, 90042), (258, 84807), (349, 62694), (387, 56538), (486, 45021), (698, 31347), (729, 30014), (774, 28269), (1047, 20898), (1161, 18846), (1458, 15007), (2094, 10449), (2322, 9423), (3141, 6966), (3483, 6282)]