21386534

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{12277}}^1$

素因数の和:12359

約数の個数: 16

約数和(自身を含む): 35065968

約数和(自身を除く): 13679434

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 12277, 24554, 159601, 319202, 822559, 1645118, 10693267, 21386534]

約数ペア:

[(1, 21386534), (2, 10693267), (13, 1645118), (26, 822559), (67, 319202), (134, 159601), (871, 24554), (1742, 12277)]