20425912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10337}}^1$

素因数の和:10375

約数の個数: 32

約数和(自身を含む): 43419600

約数和(自身を除く): 22993688

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10337, 20674, 41348, 82696, 134381, 196403, 268762, 392806, 537524, 785612, 1075048, 1571224, 2553239, 5106478, 10212956, 20425912]

約数ペア:

[(1, 20425912), (2, 10212956), (4, 5106478), (8, 2553239), (13, 1571224), (19, 1075048), (26, 785612), (38, 537524), (52, 392806), (76, 268762), (104, 196403), (152, 134381), (247, 82696), (494, 41348), (988, 20674), (1976, 10337)]