18271407

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 33546240

約数和(自身を除く): 15274833

約数列:

[1, 3, 7, 11, 19, 21, 23, 33, 57, 69, 77, 133, 161, 181, 209, 231, 253, 399, 437, 483, 543, 627, 759, 1267, 1311, 1463, 1771, 1991, 3059, 3439, 3801, 4163, 4389, 4807, 5313, 5973, 9177, 10317, 12489, 13937, 14421, 24073, 29141, 33649, 37829, 41811, 45793, 72219, 79097, 87423, 100947, 113487, 137379, 237291, 264803, 320551, 553679, 794409, 870067, 961653, 1661037, 2610201, 6090469, 18271407]

約数ペア:

[(1, 18271407), (3, 6090469), (7, 2610201), (11, 1661037), (19, 961653), (21, 870067), (23, 794409), (33, 553679), (57, 320551), (69, 264803), (77, 237291), (133, 137379), (161, 113487), (181, 100947), (209, 87423), (231, 79097), (253, 72219), (399, 45793), (437, 41811), (483, 37829), (543, 33649), (627, 29141), (759, 24073), (1267, 14421), (1311, 13937), (1463, 12489), (1771, 10317), (1991, 9177), (3059, 5973), (3439, 5313), (3801, 4807), (4163, 4389)]