278987263

素因数分解:

${\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1\times {\mathrm{919}}^1$

素因数の和:1206

約数の個数: 16

約数和(自身を含む): 297285120

約数和(自身を除く): 18297857

約数列:

[1, 23, 67, 197, 919, 1541, 4531, 13199, 21137, 61573, 181043, 303577, 1416179, 4163989, 12129881, 278987263]

約数ペア:

[(1, 278987263), (23, 12129881), (67, 4163989), (197, 1416179), (919, 303577), (1541, 181043), (4531, 61573), (13199, 21137)]