21408534

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{169909}}^1$

素因数の和:169924

約数の個数: 24

約数和(自身を含む): 53011920

約数和(自身を除く): 31603386

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 169909, 339818, 509727, 1019454, 1189363, 1529181, 2378726, 3058362, 3568089, 7136178, 10704267, 21408534]

約数ペア:

[(1, 21408534), (2, 10704267), (3, 7136178), (6, 3568089), (7, 3058362), (9, 2378726), (14, 1529181), (18, 1189363), (21, 1019454), (42, 509727), (63, 339818), (126, 169909)]