42478479

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:568

約数の個数: 32

約数和(自身を含む): 65426880

約数和(自身を除く): 22948401

約数列:

[1, 3, 9, 27, 37, 101, 111, 303, 333, 421, 909, 999, 1263, 2727, 3737, 3789, 11211, 11367, 15577, 33633, 42521, 46731, 100899, 127563, 140193, 382689, 420579, 1148067, 1573277, 4719831, 14159493, 42478479]

約数ペア:

[(1, 42478479), (3, 14159493), (9, 4719831), (27, 1573277), (37, 1148067), (101, 420579), (111, 382689), (303, 140193), (333, 127563), (421, 100899), (909, 46731), (999, 42521), (1263, 33633), (2727, 15577), (3737, 11367), (3789, 11211)]