861849

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:197

約数の個数: 24

約数和(自身を含む): 1359072

約数和(自身を除く): 497223

約数列:

[1, 3, 9, 17, 43, 51, 129, 131, 153, 387, 393, 731, 1179, 2193, 2227, 5633, 6579, 6681, 16899, 20043, 50697, 95761, 287283, 861849]

約数ペア:

[(1, 861849), (3, 287283), (9, 95761), (17, 50697), (43, 20043), (51, 16899), (129, 6681), (131, 6579), (153, 5633), (387, 2227), (393, 2193), (731, 1179)]