199941903

素因数分解:

$3^2\times 7^3\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:537

約数の個数: 48

約数和(自身を含む): 339456000

約数和(自身を除く): 139514097

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 239, 271, 343, 441, 717, 813, 1029, 1673, 1897, 2151, 2439, 3087, 5019, 5691, 11711, 13279, 15057, 17073, 35133, 39837, 64769, 81977, 92953, 105399, 119511, 194307, 245931, 278859, 453383, 582921, 737793, 836577, 1360149, 3173681, 4080447, 9521043, 22215767, 28563129, 66647301, 199941903]

約数ペア:

[(1, 199941903), (3, 66647301), (7, 28563129), (9, 22215767), (21, 9521043), (49, 4080447), (63, 3173681), (147, 1360149), (239, 836577), (271, 737793), (343, 582921), (441, 453383), (717, 278859), (813, 245931), (1029, 194307), (1673, 119511), (1897, 105399), (2151, 92953), (2439, 81977), (3087, 64769), (5019, 39837), (5691, 35133), (11711, 17073), (13279, 15057)]