17901081

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 30209088

約数和(自身を除く): 12308007

約数列:

[1, 3, 9, 11, 27, 33, 37, 81, 99, 111, 181, 243, 297, 333, 407, 543, 891, 999, 1221, 1629, 1991, 2673, 2997, 3663, 4887, 5973, 6697, 8991, 10989, 14661, 17919, 20091, 32967, 43983, 53757, 60273, 73667, 98901, 161271, 180819, 221001, 483813, 542457, 663003, 1627371, 1989009, 5967027, 17901081]

約数ペア:

[(1, 17901081), (3, 5967027), (9, 1989009), (11, 1627371), (27, 663003), (33, 542457), (37, 483813), (81, 221001), (99, 180819), (111, 161271), (181, 98901), (243, 73667), (297, 60273), (333, 53757), (407, 43983), (543, 32967), (891, 20091), (999, 17919), (1221, 14661), (1629, 10989), (1991, 8991), (2673, 6697), (2997, 5973), (3663, 4887)]