19209879

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{2027}}^1$

素因数の和:2058

約数の個数: 28

約数和(自身を含む): 31032456

約数和(自身を除く): 11822577

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 2027, 3159, 6081, 9477, 18243, 26351, 54729, 79053, 164187, 237159, 492561, 711477, 1477683, 2134431, 6403293, 19209879]

約数ペア:

[(1, 19209879), (3, 6403293), (9, 2134431), (13, 1477683), (27, 711477), (39, 492561), (81, 237159), (117, 164187), (243, 79053), (351, 54729), (729, 26351), (1053, 18243), (2027, 9477), (3159, 6081)]