18177908

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{727}}^1$

素因数の和:804

約数の個数: 48

約数和(自身を含む): 39137280

約数和(自身を除く): 20959372

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 47, 76, 94, 133, 188, 266, 329, 532, 658, 727, 893, 1316, 1454, 1786, 2908, 3572, 5089, 6251, 10178, 12502, 13813, 20356, 25004, 27626, 34169, 55252, 68338, 96691, 136676, 193382, 239183, 386764, 478366, 649211, 956732, 1298422, 2596844, 4544477, 9088954, 18177908]

約数ペア:

[(1, 18177908), (2, 9088954), (4, 4544477), (7, 2596844), (14, 1298422), (19, 956732), (28, 649211), (38, 478366), (47, 386764), (76, 239183), (94, 193382), (133, 136676), (188, 96691), (266, 68338), (329, 55252), (532, 34169), (658, 27626), (727, 25004), (893, 20356), (1316, 13813), (1454, 12502), (1786, 10178), (2908, 6251), (3572, 5089)]