257724693

素因数分解:

$3^3\times {\mathrm{457}}^1\times {\mathrm{20887}}^1$

素因数の和:21353

約数の個数: 16

約数和(自身を含む): 382668160

約数和(自身を除く): 124943467

約数列:

[1, 3, 9, 27, 457, 1371, 4113, 12339, 20887, 62661, 187983, 563949, 9545359, 28636077, 85908231, 257724693]

約数ペア:

[(1, 257724693), (3, 85908231), (9, 28636077), (27, 9545359), (457, 563949), (1371, 187983), (4113, 62661), (12339, 20887)]