18944365

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 25271064

約数和(自身を除く): 6326699

約数列:

[1, 5, 11, 55, 121, 173, 181, 605, 865, 905, 1903, 1991, 9515, 9955, 20933, 21901, 31313, 104665, 109505, 156565, 344443, 1722215, 3788873, 18944365]

約数ペア:

[(1, 18944365), (5, 3788873), (11, 1722215), (55, 344443), (121, 156565), (173, 109505), (181, 104665), (605, 31313), (865, 21901), (905, 20933), (1903, 9955), (1991, 9515)]