20091903

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1723}}^1$

素因数の和:1775

約数の個数: 24

約数和(自身を含む): 30287232

約数和(自身を除く): 10195329

約数列:

[1, 3, 13, 23, 39, 69, 169, 299, 507, 897, 1723, 3887, 5169, 11661, 22399, 39629, 67197, 118887, 291187, 515177, 873561, 1545531, 6697301, 20091903]

約数ペア:

[(1, 20091903), (3, 6697301), (13, 1545531), (23, 873561), (39, 515177), (69, 291187), (169, 118887), (299, 67197), (507, 39629), (897, 22399), (1723, 11661), (3887, 5169)]