21123544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2011}}^1$

素因数の和:2131

約数の個数: 32

約数和(自身を含む): 43097040

約数和(自身を除く): 21973496

約数列:

[1, 2, 4, 8, 13, 26, 52, 101, 104, 202, 404, 808, 1313, 2011, 2626, 4022, 5252, 8044, 10504, 16088, 26143, 52286, 104572, 203111, 209144, 406222, 812444, 1624888, 2640443, 5280886, 10561772, 21123544]

約数ペア:

[(1, 21123544), (2, 10561772), (4, 5280886), (8, 2640443), (13, 1624888), (26, 812444), (52, 406222), (101, 209144), (104, 203111), (202, 104572), (404, 52286), (808, 26143), (1313, 16088), (2011, 10504), (2626, 8044), (4022, 5252)]