399268518

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{23539}}^1$

素因数の和:23812

約数の個数: 32

約数和(自身を含む): 874558080

約数和(自身を除く): 475289562

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 257, 514, 771, 1542, 2827, 5654, 8481, 16962, 23539, 47078, 70617, 141234, 258929, 517858, 776787, 1553574, 6049523, 12099046, 18148569, 36297138, 66544753, 133089506, 199634259, 399268518]

約数ペア:

[(1, 399268518), (2, 199634259), (3, 133089506), (6, 66544753), (11, 36297138), (22, 18148569), (33, 12099046), (66, 6049523), (257, 1553574), (514, 776787), (771, 517858), (1542, 258929), (2827, 141234), (5654, 70617), (8481, 47078), (16962, 23539)]