20931702

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{13789}}^1$

素因数の和:13828

約数の個数: 32

約数和(自身を含む): 47658240

約数和(自身を除く): 26726538

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 138, 253, 506, 759, 1518, 13789, 27578, 41367, 82734, 151679, 303358, 317147, 455037, 634294, 910074, 951441, 1902882, 3488617, 6977234, 10465851, 20931702]

約数ペア:

[(1, 20931702), (2, 10465851), (3, 6977234), (6, 3488617), (11, 1902882), (22, 951441), (23, 910074), (33, 634294), (46, 455037), (66, 317147), (69, 303358), (138, 151679), (253, 82734), (506, 41367), (759, 27578), (1518, 13789)]