209890109

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 270273024

約数和(自身を除く): 60382915

約数列:

[1, 11, 13, 17, 47, 121, 143, 167, 187, 221, 517, 611, 799, 1573, 1837, 2057, 2171, 2431, 2839, 5687, 6721, 7849, 8789, 10387, 20207, 23881, 26741, 31229, 36907, 73931, 86339, 96679, 102037, 114257, 133433, 262691, 343519, 405977, 949729, 1122407, 1256827, 1467763, 1734629, 4465747, 12346477, 16145393, 19080919, 209890109]

約数ペア:

[(1, 209890109), (11, 19080919), (13, 16145393), (17, 12346477), (47, 4465747), (121, 1734629), (143, 1467763), (167, 1256827), (187, 1122407), (221, 949729), (517, 405977), (611, 343519), (799, 262691), (1573, 133433), (1837, 114257), (2057, 102037), (2171, 96679), (2431, 86339), (2839, 73931), (5687, 36907), (6721, 31229), (7849, 26741), (8789, 23881), (10387, 20207)]