18849736

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 38903040

約数和(自身を除く): 20053304

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 263, 289, 526, 527, 578, 1052, 1054, 1156, 2104, 2108, 2312, 4216, 4471, 8153, 8942, 8959, 16306, 17884, 17918, 32612, 35768, 35836, 65224, 71672, 76007, 138601, 152014, 277202, 304028, 554404, 608056, 1108808, 2356217, 4712434, 9424868, 18849736]

約数ペア:

[(1, 18849736), (2, 9424868), (4, 4712434), (8, 2356217), (17, 1108808), (31, 608056), (34, 554404), (62, 304028), (68, 277202), (124, 152014), (136, 138601), (248, 76007), (263, 71672), (289, 65224), (526, 35836), (527, 35768), (578, 32612), (1052, 17918), (1054, 17884), (1156, 16306), (2104, 8959), (2108, 8942), (2312, 8153), (4216, 4471)]