18937458

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^2\times {\mathrm{569}}^1$

素因数の和:663

約数の個数: 36

約数和(自身を含む): 42081390

約数和(自身を除く): 23143932

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 569, 774, 1138, 1707, 1849, 3414, 3698, 5121, 5547, 10242, 11094, 16641, 24467, 33282, 48934, 73401, 146802, 220203, 440406, 1052081, 2104162, 3156243, 6312486, 9468729, 18937458]

約数ペア:

[(1, 18937458), (2, 9468729), (3, 6312486), (6, 3156243), (9, 2104162), (18, 1052081), (43, 440406), (86, 220203), (129, 146802), (258, 73401), (387, 48934), (569, 33282), (774, 24467), (1138, 16641), (1707, 11094), (1849, 10242), (3414, 5547), (3698, 5121)]