209875197

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8623}}^1$

素因数の和:8713

約数の個数: 32

約数和(自身を含む): 342200320

約数和(自身を除く): 132325123

約数列:

[1, 3, 7, 19, 21, 57, 61, 133, 183, 399, 427, 1159, 1281, 3477, 8113, 8623, 24339, 25869, 60361, 163837, 181083, 491511, 526003, 1146859, 1578009, 3440577, 3682021, 9994057, 11046063, 29982171, 69958399, 209875197]

約数ペア:

[(1, 209875197), (3, 69958399), (7, 29982171), (19, 11046063), (21, 9994057), (57, 3682021), (61, 3440577), (133, 1578009), (183, 1146859), (399, 526003), (427, 491511), (1159, 181083), (1281, 163837), (3477, 60361), (8113, 25869), (8623, 24339)]