21278322

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1783}}^1$

素因数の和:1824

約数の個数: 64

約数和(自身を含む): 53948160

約数和(自身を除く): 32669838

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 102, 117, 153, 221, 234, 306, 351, 442, 459, 663, 702, 918, 1326, 1783, 1989, 3566, 3978, 5349, 5967, 10698, 11934, 16047, 23179, 30311, 32094, 46358, 48141, 60622, 69537, 90933, 96282, 139074, 181866, 208611, 272799, 394043, 417222, 545598, 625833, 788086, 818397, 1182129, 1251666, 1636794, 2364258, 3546387, 7092774, 10639161, 21278322]

約数ペア:

[(1, 21278322), (2, 10639161), (3, 7092774), (6, 3546387), (9, 2364258), (13, 1636794), (17, 1251666), (18, 1182129), (26, 818397), (27, 788086), (34, 625833), (39, 545598), (51, 417222), (54, 394043), (78, 272799), (102, 208611), (117, 181866), (153, 139074), (221, 96282), (234, 90933), (306, 69537), (351, 60622), (442, 48141), (459, 46358), (663, 32094), (702, 30311), (918, 23179), (1326, 16047), (1783, 11934), (1989, 10698), (3566, 5967), (3978, 5349)]