18171657

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1$

素因数の和:115

約数の個数: 72

約数和(自身を含む): 34235136

約数和(自身を除く): 16063479

約数列:

[1, 3, 7, 9, 17, 19, 21, 47, 51, 57, 63, 119, 133, 141, 153, 171, 323, 329, 357, 361, 399, 423, 799, 893, 969, 987, 1071, 1083, 1197, 2261, 2397, 2527, 2679, 2907, 2961, 3249, 5593, 6137, 6251, 6783, 7191, 7581, 8037, 15181, 16779, 16967, 18411, 18753, 20349, 22743, 42959, 45543, 50337, 50901, 55233, 56259, 106267, 118769, 128877, 136629, 152703, 288439, 318801, 356307, 386631, 865317, 956403, 1068921, 2019073, 2595951, 6057219, 18171657]

約数ペア:

[(1, 18171657), (3, 6057219), (7, 2595951), (9, 2019073), (17, 1068921), (19, 956403), (21, 865317), (47, 386631), (51, 356307), (57, 318801), (63, 288439), (119, 152703), (133, 136629), (141, 128877), (153, 118769), (171, 106267), (323, 56259), (329, 55233), (357, 50901), (361, 50337), (399, 45543), (423, 42959), (799, 22743), (893, 20349), (969, 18753), (987, 18411), (1071, 16967), (1083, 16779), (1197, 15181), (2261, 8037), (2397, 7581), (2527, 7191), (2679, 6783), (2907, 6251), (2961, 6137), (3249, 5593)]