20091927

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{379}}^1\times {\mathrm{431}}^1$

素因数の和:854

約数の個数: 16

約数和(自身を含む): 27578880

約数和(自身を除く): 7486953

約数列:

[1, 3, 41, 123, 379, 431, 1137, 1293, 15539, 17671, 46617, 53013, 163349, 490047, 6697309, 20091927]

約数ペア:

[(1, 20091927), (3, 6697309), (41, 490047), (123, 163349), (379, 53013), (431, 46617), (1137, 17671), (1293, 15539)]