249953403

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{1949}}^1$

素因数の和:2187

約数の個数: 32

約数和(自身を含む): 395366400

約数和(自身を除く): 145412997

約数列:

[1, 3, 7, 21, 31, 93, 197, 217, 591, 651, 1379, 1949, 4137, 5847, 6107, 13643, 18321, 40929, 42749, 60419, 128247, 181257, 383953, 422933, 1151859, 1268799, 2687671, 8063013, 11902543, 35707629, 83317801, 249953403]

約数ペア:

[(1, 249953403), (3, 83317801), (7, 35707629), (21, 11902543), (31, 8063013), (93, 2687671), (197, 1268799), (217, 1151859), (591, 422933), (651, 383953), (1379, 181257), (1949, 128247), (4137, 60419), (5847, 42749), (6107, 40929), (13643, 18321)]