21829743

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{20731}}^1$

素因数の和:20756

約数の個数: 20

約数和(自身を含む): 35120008

約数和(自身を除く): 13290265

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 20731, 62193, 186579, 269503, 559737, 808509, 1679211, 2425527, 7276581, 21829743]

約数ペア:

[(1, 21829743), (3, 7276581), (9, 2425527), (13, 1679211), (27, 808509), (39, 559737), (81, 269503), (117, 186579), (351, 62193), (1053, 20731)]