18188009

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{653}}^1$

素因数の和:856

約数の個数: 16

約数和(自身を含む): 21848832

約数和(自身を除く): 3660823

約数列:

[1, 7, 23, 161, 173, 653, 1211, 3979, 4571, 15019, 27853, 105133, 112969, 790783, 2598287, 18188009]

約数ペア:

[(1, 18188009), (7, 2598287), (23, 790783), (161, 112969), (173, 105133), (653, 27853), (1211, 15019), (3979, 4571)]