211047681

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{409}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 309133440

約数和(自身を除く): 98085759

約数列:

[1, 3, 13, 39, 101, 131, 303, 393, 409, 1227, 1313, 1703, 3939, 5109, 5317, 13231, 15951, 39693, 41309, 53579, 123927, 160737, 172003, 516009, 537017, 696527, 1611051, 2089581, 5411479, 16234437, 70349227, 211047681]

約数ペア:

[(1, 211047681), (3, 70349227), (13, 16234437), (39, 5411479), (101, 2089581), (131, 1611051), (303, 696527), (393, 537017), (409, 516009), (1227, 172003), (1313, 160737), (1703, 123927), (3939, 53579), (5109, 41309), (5317, 39693), (13231, 15951)]