201997257

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2357}}^1$

素因数の和:2438

約数の個数: 48

約数和(自身を含む): 348380352

約数和(自身を除く): 146383095

約数列:

[1, 3, 7, 11, 21, 33, 49, 53, 77, 147, 159, 231, 371, 539, 583, 1113, 1617, 1749, 2357, 2597, 4081, 7071, 7791, 12243, 16499, 25927, 28567, 49497, 77781, 85701, 115493, 124921, 181489, 346479, 374763, 544467, 874447, 1270423, 1374131, 2623341, 3811269, 4122393, 6121129, 9618917, 18363387, 28856751, 67332419, 201997257]

約数ペア:

[(1, 201997257), (3, 67332419), (7, 28856751), (11, 18363387), (21, 9618917), (33, 6121129), (49, 4122393), (53, 3811269), (77, 2623341), (147, 1374131), (159, 1270423), (231, 874447), (371, 544467), (539, 374763), (583, 346479), (1113, 181489), (1617, 124921), (1749, 115493), (2357, 85701), (2597, 77781), (4081, 49497), (7071, 28567), (7791, 25927), (12243, 16499)]