18015753

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 28588032

約数和(自身を除く): 10572279

約数列:

[1, 3, 7, 21, 43, 71, 129, 213, 281, 301, 497, 843, 903, 1491, 1967, 3053, 5901, 9159, 12083, 19951, 21371, 36249, 59853, 64113, 84581, 139657, 253743, 418971, 857893, 2573679, 6005251, 18015753]

約数ペア:

[(1, 18015753), (3, 6005251), (7, 2573679), (21, 857893), (43, 418971), (71, 253743), (129, 139657), (213, 84581), (281, 64113), (301, 59853), (497, 36249), (843, 21371), (903, 19951), (1491, 12083), (1967, 9159), (3053, 5901)]