81678891

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{761}}^1$

素因数の和:1059

約数の個数: 32

約数和(自身を含む): 131673600

約数和(自身を除く): 49994709

約数列:

[1, 3, 7, 19, 21, 57, 133, 269, 399, 761, 807, 1883, 2283, 5111, 5327, 5649, 14459, 15333, 15981, 35777, 43377, 101213, 107331, 204709, 303639, 614127, 1432963, 3889471, 4298889, 11668413, 27226297, 81678891]

約数ペア:

[(1, 81678891), (3, 27226297), (7, 11668413), (19, 4298889), (21, 3889471), (57, 1432963), (133, 614127), (269, 303639), (399, 204709), (761, 107331), (807, 101213), (1883, 43377), (2283, 35777), (5111, 15981), (5327, 15333), (5649, 14459)]