21123141

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{683}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 31042656

約数和(自身を除く): 9919515

約数列:

[1, 3, 13, 39, 61, 169, 183, 507, 683, 793, 2049, 2379, 8879, 10309, 26637, 30927, 41663, 115427, 124989, 346281, 541619, 1624857, 7041047, 21123141]

約数ペア:

[(1, 21123141), (3, 7041047), (13, 1624857), (39, 541619), (61, 346281), (169, 124989), (183, 115427), (507, 41663), (683, 30927), (793, 26637), (2049, 10309), (2379, 8879)]