18674942

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 36578304

約数和(自身を除く): 17903362

約数列:

[1, 2, 11, 13, 17, 22, 23, 26, 34, 46, 143, 167, 187, 221, 253, 286, 299, 334, 374, 391, 442, 506, 598, 782, 1837, 2171, 2431, 2839, 3289, 3674, 3841, 4301, 4342, 4862, 5083, 5678, 6578, 7682, 8602, 10166, 23881, 31229, 36907, 42251, 47762, 49933, 55913, 62458, 65297, 73814, 84502, 99866, 111826, 130594, 405977, 549263, 718267, 811954, 848861, 1098526, 1436534, 1697722, 9337471, 18674942]

約数ペア:

[(1, 18674942), (2, 9337471), (11, 1697722), (13, 1436534), (17, 1098526), (22, 848861), (23, 811954), (26, 718267), (34, 549263), (46, 405977), (143, 130594), (167, 111826), (187, 99866), (221, 84502), (253, 73814), (286, 65297), (299, 62458), (334, 55913), (374, 49933), (391, 47762), (442, 42251), (506, 36907), (598, 31229), (782, 23881), (1837, 10166), (2171, 8602), (2431, 7682), (2839, 6578), (3289, 5678), (3674, 5083), (3841, 4862), (4301, 4342)]