18438228

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^2\times {\mathrm{277}}^1$

素因数の和:373

約数の個数: 54

約数和(自身を含む): 47889114

約数和(自身を除く): 29450886

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 277, 387, 516, 554, 774, 831, 1108, 1548, 1662, 1849, 2493, 3324, 3698, 4986, 5547, 7396, 9972, 11094, 11911, 16641, 22188, 23822, 33282, 35733, 47644, 66564, 71466, 107199, 142932, 214398, 428796, 512173, 1024346, 1536519, 2048692, 3073038, 4609557, 6146076, 9219114, 18438228]

約数ペア:

[(1, 18438228), (2, 9219114), (3, 6146076), (4, 4609557), (6, 3073038), (9, 2048692), (12, 1536519), (18, 1024346), (36, 512173), (43, 428796), (86, 214398), (129, 142932), (172, 107199), (258, 71466), (277, 66564), (387, 47644), (516, 35733), (554, 33282), (774, 23822), (831, 22188), (1108, 16641), (1548, 11911), (1662, 11094), (1849, 9972), (2493, 7396), (3324, 5547), (3698, 4986)]