19937464

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4729}}^1$

素因数の和:4783

約数の個数: 32

約数和(自身を含む): 40867200

約数和(自身を除く): 20929736

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 527, 1054, 2108, 4216, 4729, 9458, 18916, 37832, 80393, 146599, 160786, 293198, 321572, 586396, 643144, 1172792, 2492183, 4984366, 9968732, 19937464]

約数ペア:

[(1, 19937464), (2, 9968732), (4, 4984366), (8, 2492183), (17, 1172792), (31, 643144), (34, 586396), (62, 321572), (68, 293198), (124, 160786), (136, 146599), (248, 80393), (527, 37832), (1054, 18916), (2108, 9458), (4216, 4729)]