28909503

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{26993}}^1$

素因数の和:27023

約数の個数: 24

約数和(自身を含む): 50532768

約数和(自身を除く): 21623265

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 26993, 80979, 188951, 242937, 458881, 566853, 1376643, 1700559, 3212167, 4129929, 9636501, 28909503]

約数ペア:

[(1, 28909503), (3, 9636501), (7, 4129929), (9, 3212167), (17, 1700559), (21, 1376643), (51, 566853), (63, 458881), (119, 242937), (153, 188951), (357, 80979), (1071, 26993)]