18938645

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{2311}}^1$

素因数の和:2476

約数の個数: 16

約数和(自身を含む): 24969600

約数和(自身を除く): 6030955

約数列:

[1, 5, 11, 55, 149, 745, 1639, 2311, 8195, 11555, 25421, 127105, 344339, 1721695, 3787729, 18938645]

約数ペア:

[(1, 18938645), (5, 3787729), (11, 1721695), (55, 344339), (149, 127105), (745, 25421), (1639, 11555), (2311, 8195)]