18772988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{19001}}^1$

素因数の和:19037

約数の個数: 24

約数和(自身を含む): 37243920

約数和(自身を除く): 18470932

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 19001, 38002, 76004, 247013, 361019, 494026, 722038, 988052, 1444076, 4693247, 9386494, 18772988]

約数ペア:

[(1, 18772988), (2, 9386494), (4, 4693247), (13, 1444076), (19, 988052), (26, 722038), (38, 494026), (52, 361019), (76, 247013), (247, 76004), (494, 38002), (988, 19001)]