1261737

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:470

約数の個数: 20

約数和(自身を含む): 1940356

約数和(自身を除く): 678619

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 421, 999, 1263, 2997, 3789, 11367, 15577, 34101, 46731, 140193, 420579, 1261737]

約数ペア:

[(1, 1261737), (3, 420579), (9, 140193), (27, 46731), (37, 34101), (81, 15577), (111, 11367), (333, 3789), (421, 2997), (999, 1263)]