20919107420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19735007}}^1$

素因数の和:19735069

約数の個数: 24

約数和(自身を含む): 44758998144

約数和(自身を除く): 23839890724

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 19735007, 39470014, 78940028, 98675035, 197350070, 394700140, 1045955371, 2091910742, 4183821484, 5229776855, 10459553710, 20919107420]

約数ペア:

[(1, 20919107420), (2, 10459553710), (4, 5229776855), (5, 4183821484), (10, 2091910742), (20, 1045955371), (53, 394700140), (106, 197350070), (212, 98675035), (265, 78940028), (530, 39470014), (1060, 19735007)]