21078990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{234211}}^1$

素因数の和:234224

約数の個数: 24

約数和(自身を含む): 54805608

約数和(自身を除く): 33726618

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 234211, 468422, 702633, 1171055, 1405266, 2107899, 2342110, 3513165, 4215798, 7026330, 10539495, 21078990]

約数ペア:

[(1, 21078990), (2, 10539495), (3, 7026330), (5, 4215798), (6, 3513165), (9, 2342110), (10, 2107899), (15, 1405266), (18, 1171055), (30, 702633), (45, 468422), (90, 234211)]