20973784

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11863}}^1$

素因数の和:11899

約数の個数: 32

約数和(自身を含む): 44845920

約数和(自身を除く): 23872136

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11863, 23726, 47452, 94904, 154219, 201671, 308438, 403342, 616876, 806684, 1233752, 1613368, 2621723, 5243446, 10486892, 20973784]

約数ペア:

[(1, 20973784), (2, 10486892), (4, 5243446), (8, 2621723), (13, 1613368), (17, 1233752), (26, 806684), (34, 616876), (52, 403342), (68, 308438), (104, 201671), (136, 154219), (221, 94904), (442, 47452), (884, 23726), (1768, 11863)]