28353871

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1$

素因数の和:116

約数の個数: 48

約数和(自身を含む): 39639040

約数和(自身を除く): 11285169

約数列:

[1, 7, 13, 19, 23, 31, 91, 133, 161, 217, 247, 299, 403, 437, 529, 589, 713, 1729, 2093, 2821, 3059, 3703, 4123, 4991, 5681, 6877, 7657, 9269, 10051, 13547, 16399, 39767, 48139, 53599, 64883, 70357, 94829, 114793, 130663, 176111, 213187, 311581, 914641, 1232777, 1492309, 2181067, 4050553, 28353871]

約数ペア:

[(1, 28353871), (7, 4050553), (13, 2181067), (19, 1492309), (23, 1232777), (31, 914641), (91, 311581), (133, 213187), (161, 176111), (217, 130663), (247, 114793), (299, 94829), (403, 70357), (437, 64883), (529, 53599), (589, 48139), (713, 39767), (1729, 16399), (2093, 13547), (2821, 10051), (3059, 9269), (3703, 7657), (4123, 6877), (4991, 5681)]