19639854

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{277}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 47638080

約数和(自身を除く): 27998226

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 101, 117, 202, 234, 277, 303, 351, 554, 606, 702, 831, 909, 1313, 1662, 1818, 2493, 2626, 2727, 3601, 3939, 4986, 5454, 7202, 7479, 7878, 10803, 11817, 14958, 21606, 23634, 27977, 32409, 35451, 55954, 64818, 70902, 83931, 97227, 167862, 194454, 251793, 363701, 503586, 727402, 755379, 1091103, 1510758, 2182206, 3273309, 6546618, 9819927, 19639854]

約数ペア:

[(1, 19639854), (2, 9819927), (3, 6546618), (6, 3273309), (9, 2182206), (13, 1510758), (18, 1091103), (26, 755379), (27, 727402), (39, 503586), (54, 363701), (78, 251793), (101, 194454), (117, 167862), (202, 97227), (234, 83931), (277, 70902), (303, 64818), (351, 55954), (554, 35451), (606, 32409), (702, 27977), (831, 23634), (909, 21606), (1313, 14958), (1662, 11817), (1818, 10803), (2493, 7878), (2626, 7479), (2727, 7202), (3601, 5454), (3939, 4986)]