397666438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{157679}}^1$

素因数の和:157791

約数の個数: 16

約数和(自身を含む): 649010880

約数和(自身を除く): 251344442

約数列:

[1, 2, 13, 26, 97, 194, 1261, 2522, 157679, 315358, 2049827, 4099654, 15294863, 30589726, 198833219, 397666438]

約数ペア:

[(1, 397666438), (2, 198833219), (13, 30589726), (26, 15294863), (97, 4099654), (194, 2049827), (1261, 315358), (2522, 157679)]