20131180491

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{647}}^1\times {\mathrm{7643}}^1$

素因数の和:8375

約数の個数: 32

約数和(自身を含む): 28531077120

約数和(自身を除く): 8399896629

約数列:

[1, 3, 23, 59, 69, 177, 647, 1357, 1941, 4071, 7643, 14881, 22929, 38173, 44643, 114519, 175789, 450937, 527367, 877979, 1352811, 2633937, 4945021, 10371551, 14835063, 31114653, 113735483, 291756239, 341206449, 875268717, 6710393497, 20131180491]

約数ペア:

[(1, 20131180491), (3, 6710393497), (23, 875268717), (59, 341206449), (69, 291756239), (177, 113735483), (647, 31114653), (1357, 14835063), (1941, 10371551), (4071, 4945021), (7643, 2633937), (14881, 1352811), (22929, 877979), (38173, 527367), (44643, 450937), (114519, 175789)]