81013698

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{63391}}^1$

素因数の和:63470

約数の個数: 24

約数和(自身を含む): 178004736

約数和(自身を除く): 96991038

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 63391, 126782, 190173, 380346, 570519, 1141038, 4500761, 9001522, 13502283, 27004566, 40506849, 81013698]

約数ペア:

[(1, 81013698), (2, 40506849), (3, 27004566), (6, 13502283), (9, 9001522), (18, 4500761), (71, 1141038), (142, 570519), (213, 380346), (426, 190173), (639, 126782), (1278, 63391)]