21378418

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{4951}}^1$

素因数の和:5097

約数の個数: 16

約数和(自身を含む): 34228224

約数和(自身を除く): 12849806

約数列:

[1, 2, 17, 34, 127, 254, 2159, 4318, 4951, 9902, 84167, 168334, 628777, 1257554, 10689209, 21378418]

約数ペア:

[(1, 21378418), (2, 10689209), (17, 1257554), (34, 628777), (127, 168334), (254, 84167), (2159, 9902), (4318, 4951)]