18406003

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{547}}^1$

素因数の和:607

約数の個数: 32

約数和(自身を含む): 25251840

約数和(自身を除く): 6845837

約数列:

[1, 7, 11, 19, 23, 77, 133, 161, 209, 253, 437, 547, 1463, 1771, 3059, 3829, 4807, 6017, 10393, 12581, 33649, 42119, 72751, 88067, 114323, 138391, 239039, 800261, 968737, 1673273, 2629429, 18406003]

約数ペア:

[(1, 18406003), (7, 2629429), (11, 1673273), (19, 968737), (23, 800261), (77, 239039), (133, 138391), (161, 114323), (209, 88067), (253, 72751), (437, 42119), (547, 33649), (1463, 12581), (1771, 10393), (3059, 6017), (3829, 4807)]