21287554

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{2027}}^1$

素因数の和:2177

約数の個数: 16

約数和(自身を含む): 32853600

約数和(自身を除く): 11566046

約数列:

[1, 2, 59, 89, 118, 178, 2027, 4054, 5251, 10502, 119593, 180403, 239186, 360806, 10643777, 21287554]

約数ペア:

[(1, 21287554), (2, 10643777), (59, 360806), (89, 239186), (118, 180403), (178, 119593), (2027, 10502), (4054, 5251)]