20171762667

素因数分解:

$3^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{408923}}^1$

素因数の和:408974

約数の個数: 48

約数和(自身を含む): 35723600640

約数和(自身を除く): 15551837973

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 189, 203, 243, 261, 567, 609, 783, 1701, 1827, 2349, 5481, 7047, 16443, 49329, 408923, 1226769, 2862461, 3680307, 8587383, 11040921, 11858767, 25762149, 33122763, 35576301, 77286447, 83011369, 99368289, 106728903, 231859341, 249034107, 320186709, 695578023, 747102321, 960560127, 2241306963, 2881680381, 6723920889, 20171762667]

約数ペア:

[(1, 20171762667), (3, 6723920889), (7, 2881680381), (9, 2241306963), (21, 960560127), (27, 747102321), (29, 695578023), (63, 320186709), (81, 249034107), (87, 231859341), (189, 106728903), (203, 99368289), (243, 83011369), (261, 77286447), (567, 35576301), (609, 33122763), (783, 25762149), (1701, 11858767), (1827, 11040921), (2349, 8587383), (5481, 3680307), (7047, 2862461), (16443, 1226769), (49329, 408923)]