1999320813

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{121591}}^1$

素因数の和:121639

約数の個数: 40

約数和(自身を含む): 3531031680

約数和(自身を除く): 1531710867

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 189, 203, 261, 567, 609, 783, 1827, 2349, 5481, 16443, 121591, 364773, 851137, 1094319, 2553411, 3282957, 3526139, 7660233, 9848871, 10578417, 22980699, 24682973, 31735251, 68942097, 74048919, 95205753, 222146757, 285617259, 666440271, 1999320813]

約数ペア:

[(1, 1999320813), (3, 666440271), (7, 285617259), (9, 222146757), (21, 95205753), (27, 74048919), (29, 68942097), (63, 31735251), (81, 24682973), (87, 22980699), (189, 10578417), (203, 9848871), (261, 7660233), (567, 3526139), (609, 3282957), (783, 2553411), (1827, 1094319), (2349, 851137), (5481, 364773), (16443, 121591)]