21666346

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{719}}^1$

素因数の和:814

約数の個数: 32

約数和(自身を含む): 37497600

約数和(自身を除く): 15831254

約数列:

[1, 2, 13, 19, 26, 38, 61, 122, 247, 494, 719, 793, 1159, 1438, 1586, 2318, 9347, 13661, 15067, 18694, 27322, 30134, 43859, 87718, 177593, 355186, 570167, 833321, 1140334, 1666642, 10833173, 21666346]

約数ペア:

[(1, 21666346), (2, 10833173), (13, 1666642), (19, 1140334), (26, 833321), (38, 570167), (61, 355186), (122, 177593), (247, 87718), (494, 43859), (719, 30134), (793, 27322), (1159, 18694), (1438, 15067), (1586, 13661), (2318, 9347)]