28405521

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:270

約数の個数: 36

約数和(自身を含む): 44507632

約数和(自身を除く): 16102111

約数列:

[1, 3, 9, 17, 51, 67, 153, 163, 201, 289, 489, 603, 867, 1139, 1467, 2601, 2771, 3417, 8313, 10251, 10921, 19363, 24939, 32763, 47107, 58089, 98289, 141321, 174267, 185657, 423963, 556971, 1670913, 3156169, 9468507, 28405521]

約数ペア:

[(1, 28405521), (3, 9468507), (9, 3156169), (17, 1670913), (51, 556971), (67, 423963), (153, 185657), (163, 174267), (201, 141321), (289, 98289), (489, 58089), (603, 47107), (867, 32763), (1139, 24939), (1467, 19363), (2601, 10921), (2771, 10251), (3417, 8313)]