17681769

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 30551040

約数和(自身を除く): 12869271

約数列:

[1, 3, 7, 9, 21, 59, 63, 67, 71, 177, 201, 213, 413, 469, 497, 531, 603, 639, 1239, 1407, 1491, 3717, 3953, 4189, 4221, 4473, 4757, 11859, 12567, 14271, 27671, 29323, 33299, 35577, 37701, 42813, 83013, 87969, 99897, 249039, 263907, 280663, 299691, 841989, 1964641, 2525967, 5893923, 17681769]

約数ペア:

[(1, 17681769), (3, 5893923), (7, 2525967), (9, 1964641), (21, 841989), (59, 299691), (63, 280663), (67, 263907), (71, 249039), (177, 99897), (201, 87969), (213, 83013), (413, 42813), (469, 37701), (497, 35577), (531, 33299), (603, 29323), (639, 27671), (1239, 14271), (1407, 12567), (1491, 11859), (3717, 4757), (3953, 4473), (4189, 4221)]