247779471

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{691}}^1$

素因数の和:879

約数の個数: 32

約数和(自身を含む): 358732800

約数和(自身を除く): 110953329

約数列:

[1, 3, 17, 51, 79, 89, 237, 267, 691, 1343, 1513, 2073, 4029, 4539, 7031, 11747, 21093, 35241, 54589, 61499, 119527, 163767, 184497, 358581, 928013, 1045483, 2784039, 3136449, 4858421, 14575263, 82593157, 247779471]

約数ペア:

[(1, 247779471), (3, 82593157), (17, 14575263), (51, 4858421), (79, 3136449), (89, 2784039), (237, 1045483), (267, 928013), (691, 358581), (1343, 184497), (1513, 163767), (2073, 119527), (4029, 61499), (4539, 54589), (7031, 35241), (11747, 21093)]