20407463

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:167

約数の個数: 32

約数和(自身を含む): 24675840

約数和(自身を除く): 4268377

約数列:

[1, 17, 19, 23, 41, 67, 323, 391, 437, 697, 779, 943, 1139, 1273, 1541, 2747, 7429, 13243, 16031, 17917, 21641, 26197, 29279, 46699, 52193, 63181, 304589, 497743, 887281, 1074077, 1200439, 20407463]

約数ペア:

[(1, 20407463), (17, 1200439), (19, 1074077), (23, 887281), (41, 497743), (67, 304589), (323, 63181), (391, 52193), (437, 46699), (697, 29279), (779, 26197), (943, 21641), (1139, 17917), (1273, 16031), (1541, 13243), (2747, 7429)]