19885801

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 23381120

約数和(自身を除く): 3495319

約数列:

[1, 13, 17, 67, 79, 221, 289, 871, 1027, 1139, 1343, 3757, 5293, 14807, 17459, 19363, 22831, 68809, 89981, 251719, 296803, 1169753, 1529677, 19885801]

約数ペア:

[(1, 19885801), (13, 1529677), (17, 1169753), (67, 296803), (79, 251719), (221, 89981), (289, 68809), (871, 22831), (1027, 19363), (1139, 17459), (1343, 14807), (3757, 5293)]