18309291

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1$

素因数の和:121

約数の個数: 72

約数和(自身を含む): 34046784

約数和(自身を除く): 15737493

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 49, 67, 77, 91, 143, 147, 169, 201, 231, 273, 429, 469, 507, 539, 637, 737, 871, 1001, 1183, 1407, 1617, 1859, 1911, 2211, 2613, 3003, 3283, 3549, 5159, 5577, 6097, 7007, 8281, 9581, 9849, 11323, 13013, 15477, 18291, 21021, 24843, 28743, 33969, 36113, 39039, 42679, 67067, 79261, 91091, 108339, 124553, 128037, 201201, 237783, 273273, 373659, 469469, 554827, 871871, 1408407, 1664481, 2615613, 6103097, 18309291]

約数ペア:

[(1, 18309291), (3, 6103097), (7, 2615613), (11, 1664481), (13, 1408407), (21, 871871), (33, 554827), (39, 469469), (49, 373659), (67, 273273), (77, 237783), (91, 201201), (143, 128037), (147, 124553), (169, 108339), (201, 91091), (231, 79261), (273, 67067), (429, 42679), (469, 39039), (507, 36113), (539, 33969), (637, 28743), (737, 24843), (871, 21021), (1001, 18291), (1183, 15477), (1407, 13013), (1617, 11323), (1859, 9849), (1911, 9581), (2211, 8281), (2613, 7007), (3003, 6097), (3283, 5577), (3549, 5159)]