3887989

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:121

約数の個数: 32

約数和(自身を含む): 5160960

約数和(自身を除く): 1272971

約数列:

[1, 7, 19, 23, 31, 41, 133, 161, 217, 287, 437, 589, 713, 779, 943, 1271, 3059, 4123, 4991, 5453, 6601, 8897, 13547, 17917, 24149, 29233, 94829, 125419, 169043, 204631, 555427, 3887989]

約数ペア:

[(1, 3887989), (7, 555427), (19, 204631), (23, 169043), (31, 125419), (41, 94829), (133, 29233), (161, 24149), (217, 17917), (287, 13547), (437, 8897), (589, 6601), (713, 5453), (779, 4991), (943, 4123), (1271, 3059)]