20145141

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{269}}^1$

素因数の和:485

約数の個数: 24

約数和(自身を含む): 29947320

約数和(自身を除く): 9802179

約数列:

[1, 3, 9, 53, 157, 159, 269, 471, 477, 807, 1413, 2421, 8321, 14257, 24963, 42233, 42771, 74889, 126699, 128313, 380097, 2238349, 6715047, 20145141]

約数ペア:

[(1, 20145141), (3, 6715047), (9, 2238349), (53, 380097), (157, 128313), (159, 126699), (269, 74889), (471, 42771), (477, 42233), (807, 24963), (1413, 14257), (2421, 8321)]