18955821

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{4111}}^1$

素因数の和:4196

約数の個数: 16

約数和(自身を含む): 26645760

約数和(自身を除く): 7689939

約数列:

[1, 3, 29, 53, 87, 159, 1537, 4111, 4611, 12333, 119219, 217883, 357657, 653649, 6318607, 18955821]

約数ペア:

[(1, 18955821), (3, 6318607), (29, 653649), (53, 357657), (87, 217883), (159, 119219), (1537, 12333), (4111, 4611)]