18953487

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{347}}^1$

素因数の和:397

約数の個数: 48

約数和(自身を含む): 34187520

約数和(自身を除く): 15234033

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 289, 347, 357, 459, 867, 1041, 1071, 2023, 2429, 2601, 3123, 3213, 5899, 6069, 7287, 7803, 9369, 17697, 18207, 21861, 41293, 53091, 54621, 65583, 100283, 123879, 159273, 300849, 371637, 701981, 902547, 1114911, 2105943, 2707641, 6317829, 18953487]

約数ペア:

[(1, 18953487), (3, 6317829), (7, 2707641), (9, 2105943), (17, 1114911), (21, 902547), (27, 701981), (51, 371637), (63, 300849), (119, 159273), (153, 123879), (189, 100283), (289, 65583), (347, 54621), (357, 53091), (459, 41293), (867, 21861), (1041, 18207), (1071, 17697), (2023, 9369), (2429, 7803), (2601, 7287), (3123, 6069), (3213, 5899)]