857193561

素因数分解:

$3^2\times 7^1\times {\mathrm{2039}}^1\times {\mathrm{6673}}^1$

素因数の和:8725

約数の個数: 24

約数和(自身を含む): 1415955840

約数和(自身を除く): 558762279

約数列:

[1, 3, 7, 9, 21, 63, 2039, 6117, 6673, 14273, 18351, 20019, 42819, 46711, 60057, 128457, 140133, 420399, 13606247, 40818741, 95243729, 122456223, 285731187, 857193561]

約数ペア:

[(1, 857193561), (3, 285731187), (7, 122456223), (9, 95243729), (21, 40818741), (63, 13606247), (2039, 420399), (6117, 140133), (6673, 128457), (14273, 60057), (18351, 46711), (20019, 42819)]