21167478

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^2\times {\mathrm{859}}^1$

素因数の和:941

約数の個数: 36

約数和(自身を含む): 47190780

約数和(自身を除く): 26023302

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666, 859, 1369, 1718, 2577, 2738, 4107, 5154, 7731, 8214, 12321, 15462, 24642, 31783, 63566, 95349, 190698, 286047, 572094, 1175971, 2351942, 3527913, 7055826, 10583739, 21167478]

約数ペア:

[(1, 21167478), (2, 10583739), (3, 7055826), (6, 3527913), (9, 2351942), (18, 1175971), (37, 572094), (74, 286047), (111, 190698), (222, 95349), (333, 63566), (666, 31783), (859, 24642), (1369, 15462), (1718, 12321), (2577, 8214), (2738, 7731), (4107, 5154)]