28197828

素因数分解:

$2^2\times 3^3\times {\mathrm{157}}^1\times {\mathrm{1663}}^1$

素因数の和:1833

約数の個数: 48

約数和(自身を含む): 73615360

約数和(自身を除く): 45417532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 157, 314, 471, 628, 942, 1413, 1663, 1884, 2826, 3326, 4239, 4989, 5652, 6652, 8478, 9978, 14967, 16956, 19956, 29934, 44901, 59868, 89802, 179604, 261091, 522182, 783273, 1044364, 1566546, 2349819, 3133092, 4699638, 7049457, 9399276, 14098914, 28197828]

約数ペア:

[(1, 28197828), (2, 14098914), (3, 9399276), (4, 7049457), (6, 4699638), (9, 3133092), (12, 2349819), (18, 1566546), (27, 1044364), (36, 783273), (54, 522182), (108, 261091), (157, 179604), (314, 89802), (471, 59868), (628, 44901), (942, 29934), (1413, 19956), (1663, 16956), (1884, 14967), (2826, 9978), (3326, 8478), (4239, 6652), (4989, 5652)]