289686817

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1997}}^1$

素因数の和:2097

約数の個数: 32

約数和(自身を含む): 372874752

約数和(自身を除く): 83187935

約数列:

[1, 7, 17, 23, 53, 119, 161, 371, 391, 901, 1219, 1997, 2737, 6307, 8533, 13979, 20723, 33949, 45931, 105841, 145061, 237643, 321517, 740887, 780827, 1799297, 2434343, 5465789, 12595079, 17040401, 41383831, 289686817]

約数ペア:

[(1, 289686817), (7, 41383831), (17, 17040401), (23, 12595079), (53, 5465789), (119, 2434343), (161, 1799297), (371, 780827), (391, 740887), (901, 321517), (1219, 237643), (1997, 145061), (2737, 105841), (6307, 45931), (8533, 33949), (13979, 20723)]