1256913

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:365

約数の個数: 24

約数和(自身を含む): 2111616

約数和(自身を除く): 854703

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 281, 497, 639, 843, 1491, 1967, 2529, 4473, 5901, 17703, 19951, 59853, 139657, 179559, 418971, 1256913]

約数ペア:

[(1, 1256913), (3, 418971), (7, 179559), (9, 139657), (21, 59853), (63, 19951), (71, 17703), (213, 5901), (281, 4473), (497, 2529), (639, 1967), (843, 1491)]