20156829

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1229}}^1$

素因数の和:1321

約数の個数: 32

約数和(自身を含む): 34007040

約数和(自身を除く): 13850211

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 213, 231, 497, 781, 1229, 1491, 2343, 3687, 5467, 8603, 13519, 16401, 25809, 40557, 87259, 94633, 261777, 283899, 610813, 959849, 1832439, 2879547, 6718943, 20156829]

約数ペア:

[(1, 20156829), (3, 6718943), (7, 2879547), (11, 1832439), (21, 959849), (33, 610813), (71, 283899), (77, 261777), (213, 94633), (231, 87259), (497, 40557), (781, 25809), (1229, 16401), (1491, 13519), (2343, 8603), (3687, 5467)]