213154711

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2749}}^1$

素因数の和:2839

約数の個数: 32

約数和(自身を含む): 285120000

約数和(自身を除く): 71965289

約数列:

[1, 7, 11, 19, 53, 77, 133, 209, 371, 583, 1007, 1463, 2749, 4081, 7049, 11077, 19243, 30239, 52231, 77539, 145697, 211673, 365617, 574541, 1019879, 1602667, 2768243, 4021787, 11218669, 19377701, 30450673, 213154711]

約数ペア:

[(1, 213154711), (7, 30450673), (11, 19377701), (19, 11218669), (53, 4021787), (77, 2768243), (133, 1602667), (209, 1019879), (371, 574541), (583, 365617), (1007, 211673), (1463, 145697), (2749, 77539), (4081, 52231), (7049, 30239), (11077, 19243)]