19900911

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1\times {\mathrm{761}}^1$

素因数の和:1166

約数の個数: 16

約数和(自身を含む): 27797760

約数和(自身を除く): 7896849

約数列:

[1, 3, 23, 69, 379, 761, 1137, 2283, 8717, 17503, 26151, 52509, 288419, 865257, 6633637, 19900911]

約数ペア:

[(1, 19900911), (3, 6633637), (23, 865257), (69, 288419), (379, 52509), (761, 26151), (1137, 17503), (2283, 8717)]