64493289

素因数分解:

$3^2\times 7^1\times {\mathrm{991}}^1\times {\mathrm{1033}}^1$

素因数の和:2037

約数の個数: 24

約数和(自身を含む): 106675712

約数和(自身を除く): 42182423

約数列:

[1, 3, 7, 9, 21, 63, 991, 1033, 2973, 3099, 6937, 7231, 8919, 9297, 20811, 21693, 62433, 65079, 1023703, 3071109, 7165921, 9213327, 21497763, 64493289]

約数ペア:

[(1, 64493289), (3, 21497763), (7, 9213327), (9, 7165921), (21, 3071109), (63, 1023703), (991, 65079), (1033, 62433), (2973, 21693), (3099, 20811), (6937, 9297), (7231, 8919)]