21580338

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{276671}}^1$

素因数の和:276689

約数の個数: 16

約数和(自身を含む): 46480896

約数和(自身を除く): 24900558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 276671, 553342, 830013, 1660026, 3596723, 7193446, 10790169, 21580338]

約数ペア:

[(1, 21580338), (2, 10790169), (3, 7193446), (6, 3596723), (13, 1660026), (26, 830013), (39, 553342), (78, 276671)]