158640909

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{1033}}^1$

素因数の和:1217

約数の個数: 32

約数和(自身を含む): 247762944

約数和(自身を除く): 89122035

約数列:

[1, 3, 7, 21, 71, 103, 213, 309, 497, 721, 1033, 1491, 2163, 3099, 7231, 7313, 21693, 21939, 51191, 73343, 106399, 153573, 220029, 319197, 513401, 744793, 1540203, 2234379, 7554329, 22662987, 52880303, 158640909]

約数ペア:

[(1, 158640909), (3, 52880303), (7, 22662987), (21, 7554329), (71, 2234379), (103, 1540203), (213, 744793), (309, 513401), (497, 319197), (721, 220029), (1033, 153573), (1491, 106399), (2163, 73343), (3099, 51191), (7231, 21939), (7313, 21693)]