21930447

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{683}}^1$

素因数の和:843

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 14841393

約数列:

[1, 3, 7, 11, 21, 33, 77, 139, 231, 417, 683, 973, 1529, 2049, 2919, 4587, 4781, 7513, 10703, 14343, 22539, 32109, 52591, 94937, 157773, 284811, 664559, 1044307, 1993677, 3132921, 7310149, 21930447]

約数ペア:

[(1, 21930447), (3, 7310149), (7, 3132921), (11, 1993677), (21, 1044307), (33, 664559), (77, 284811), (139, 157773), (231, 94937), (417, 52591), (683, 32109), (973, 22539), (1529, 14343), (2049, 10703), (2919, 7513), (4587, 4781)]