220781209

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{677}}^1\times {\mathrm{1289}}^1$

素因数の和:2000

約数の個数: 16

約数和(自身を含む): 251890560

約数和(自身を除く): 31109351

約数列:

[1, 11, 23, 253, 677, 1289, 7447, 14179, 15571, 29647, 171281, 326117, 872653, 9599183, 20071019, 220781209]

約数ペア:

[(1, 220781209), (11, 20071019), (23, 9599183), (253, 872653), (677, 326117), (1289, 171281), (7447, 29647), (14179, 15571)]