21936278

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2803}}^1$

素因数の和:2868

約数の個数: 32

約数和(自身を含む): 41454336

約数和(自身を除く): 19518058

約数列:

[1, 2, 7, 13, 14, 26, 43, 86, 91, 182, 301, 559, 602, 1118, 2803, 3913, 5606, 7826, 19621, 36439, 39242, 72878, 120529, 241058, 255073, 510146, 843703, 1566877, 1687406, 3133754, 10968139, 21936278]

約数ペア:

[(1, 21936278), (2, 10968139), (7, 3133754), (13, 1687406), (14, 1566877), (26, 843703), (43, 510146), (86, 255073), (91, 241058), (182, 120529), (301, 72878), (559, 39242), (602, 36439), (1118, 19621), (2803, 7826), (3913, 5606)]