199391073

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{1187}}^1$

素因数の和:1637

約数の個数: 32

約数和(自身を含む): 320855040

約数和(自身を除く): 121463967

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 421, 1187, 1263, 2947, 3561, 7999, 8309, 8841, 22553, 23997, 24927, 55993, 67659, 157871, 167979, 473613, 499727, 1499181, 3498089, 9494813, 10494267, 28484439, 66463691, 199391073]

約数ペア:

[(1, 199391073), (3, 66463691), (7, 28484439), (19, 10494267), (21, 9494813), (57, 3498089), (133, 1499181), (399, 499727), (421, 473613), (1187, 167979), (1263, 157871), (2947, 67659), (3561, 55993), (7999, 24927), (8309, 23997), (8841, 22553)]