19581188

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1759}}^1$

素因数の和:1808

約数の個数: 36

約数和(自身を含む): 39325440

約数和(自身を除く): 19744252

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 121, 242, 253, 484, 506, 1012, 1759, 2783, 3518, 5566, 7036, 11132, 19349, 38698, 40457, 77396, 80914, 161828, 212839, 425678, 445027, 851356, 890054, 1780108, 4895297, 9790594, 19581188]

約数ペア:

[(1, 19581188), (2, 9790594), (4, 4895297), (11, 1780108), (22, 890054), (23, 851356), (44, 445027), (46, 425678), (92, 212839), (121, 161828), (242, 80914), (253, 77396), (484, 40457), (506, 38698), (1012, 19349), (1759, 11132), (2783, 7036), (3518, 5566)]