21407457136

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{7916959}}^1$

素因数の和:7916993

約数の個数: 30

約数和(自身を含む): 44912914080

約数和(自身を除く): 23505456944

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 7916959, 15833918, 31667836, 63335672, 102920467, 126671344, 205840934, 411681868, 823363736, 1337966071, 1646727472, 2675932142, 5351864284, 10703728568, 21407457136]

約数ペア:

[(1, 21407457136), (2, 10703728568), (4, 5351864284), (8, 2675932142), (13, 1646727472), (16, 1337966071), (26, 823363736), (52, 411681868), (104, 205840934), (169, 126671344), (208, 102920467), (338, 63335672), (676, 31667836), (1352, 15833918), (2704, 7916959)]