19926543

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1553}}^1$

素因数の和:1623

約数の個数: 32

約数和(自身を含む): 33417216

約数和(自身を除く): 13490673

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1553, 1833, 4277, 4659, 10871, 12831, 20189, 32613, 60567, 72991, 141323, 218973, 423969, 510937, 948883, 1532811, 2846649, 6642181, 19926543]

約数ペア:

[(1, 19926543), (3, 6642181), (7, 2846649), (13, 1532811), (21, 948883), (39, 510937), (47, 423969), (91, 218973), (141, 141323), (273, 72991), (329, 60567), (611, 32613), (987, 20189), (1553, 12831), (1833, 10871), (4277, 4659)]