209452789

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{229}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 284905600

約数和(自身を除く): 75452811

約数列:

[1, 7, 13, 19, 23, 91, 133, 161, 229, 247, 299, 437, 529, 1603, 1729, 2093, 2977, 3059, 3703, 4351, 5267, 5681, 6877, 10051, 20839, 30457, 36869, 39767, 48139, 56563, 68471, 70357, 100073, 121141, 130663, 395941, 479297, 700511, 847987, 914641, 1300949, 1574833, 2301679, 9106643, 11023831, 16111753, 29921827, 209452789]

約数ペア:

[(1, 209452789), (7, 29921827), (13, 16111753), (19, 11023831), (23, 9106643), (91, 2301679), (133, 1574833), (161, 1300949), (229, 914641), (247, 847987), (299, 700511), (437, 479297), (529, 395941), (1603, 130663), (1729, 121141), (2093, 100073), (2977, 70357), (3059, 68471), (3703, 56563), (4351, 48139), (5267, 39767), (5681, 36869), (6877, 30457), (10051, 20839)]