19647771

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{271}}^1$

素因数の和:324

約数の個数: 32

約数和(自身を含む): 31073280

約数和(自身を除く): 11425509

約数列:

[1, 3, 11, 13, 33, 39, 143, 169, 271, 429, 507, 813, 1859, 2197, 2981, 3523, 5577, 6591, 8943, 10569, 24167, 38753, 45799, 72501, 116259, 137397, 503789, 595387, 1511367, 1786161, 6549257, 19647771]

約数ペア:

[(1, 19647771), (3, 6549257), (11, 1786161), (13, 1511367), (33, 595387), (39, 503789), (143, 137397), (169, 116259), (271, 72501), (429, 45799), (507, 38753), (813, 24167), (1859, 10569), (2197, 8943), (2981, 6591), (3523, 5577)]