77881581

素因数分解:

$3^4\times {\mathrm{509}}^1\times {\mathrm{1889}}^1$

素因数の和:2410

約数の個数: 20

約数和(自身を含む): 116631900

約数和(自身を除く): 38750319

約数列:

[1, 3, 9, 27, 81, 509, 1527, 1889, 4581, 5667, 13743, 17001, 41229, 51003, 153009, 961501, 2884503, 8653509, 25960527, 77881581]

約数ペア:

[(1, 77881581), (3, 25960527), (9, 8653509), (27, 2884503), (81, 961501), (509, 153009), (1527, 51003), (1889, 41229), (4581, 17001), (5667, 13743)]