29120721

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{19531}}^1$

素因数の和:19612

約数の個数: 16

約数和(自身を含む): 45001728

約数和(自身を除く): 15881007

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 19531, 58593, 136717, 410151, 1386701, 4160103, 9706907, 29120721]

約数ペア:

[(1, 29120721), (3, 9706907), (7, 4160103), (21, 1386701), (71, 410151), (213, 136717), (497, 58593), (1491, 19531)]