21037260315

素因数分解:

$3^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2121761}}^1$

素因数の和:2122430

約数の個数: 16

約数和(自身を含む): 33710554656

約数和(自身を除く): 12673294341

約数列:

[1, 3, 5, 15, 661, 1983, 3305, 9915, 2121761, 6365283, 10608805, 31826415, 1402484021, 4207452063, 7012420105, 21037260315]

約数ペア:

[(1, 21037260315), (3, 7012420105), (5, 4207452063), (15, 1402484021), (661, 31826415), (1983, 10608805), (3305, 6365283), (9915, 2121761)]