18976545

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{467}}^1$

素因数の和:531

約数の個数: 64

約数和(自身を含む): 39536640

約数和(自身を除く): 20560095

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 43, 45, 63, 105, 129, 135, 189, 215, 301, 315, 387, 467, 645, 903, 945, 1161, 1401, 1505, 1935, 2335, 2709, 3269, 4203, 4515, 5805, 7005, 8127, 9807, 12609, 13545, 16345, 20081, 21015, 29421, 40635, 49035, 60243, 63045, 88263, 100405, 140567, 147105, 180729, 301215, 421701, 441315, 542187, 702835, 903645, 1265103, 2108505, 2710935, 3795309, 6325515, 18976545]

約数ペア:

[(1, 18976545), (3, 6325515), (5, 3795309), (7, 2710935), (9, 2108505), (15, 1265103), (21, 903645), (27, 702835), (35, 542187), (43, 441315), (45, 421701), (63, 301215), (105, 180729), (129, 147105), (135, 140567), (189, 100405), (215, 88263), (301, 63045), (315, 60243), (387, 49035), (467, 40635), (645, 29421), (903, 21015), (945, 20081), (1161, 16345), (1401, 13545), (1505, 12609), (1935, 9807), (2335, 8127), (2709, 7005), (3269, 5805), (4203, 4515)]