19628973

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2663}}^1$

素因数の和:2695

約数の個数: 40

約数和(自身を含む): 36102528

約数和(自身を除く): 16473555

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 2663, 7371, 7989, 18641, 23967, 34619, 55923, 71901, 103857, 167769, 215703, 242333, 311571, 503307, 726999, 934713, 1509921, 2180997, 2804139, 6542991, 19628973]

約数ペア:

[(1, 19628973), (3, 6542991), (7, 2804139), (9, 2180997), (13, 1509921), (21, 934713), (27, 726999), (39, 503307), (63, 311571), (81, 242333), (91, 215703), (117, 167769), (189, 103857), (273, 71901), (351, 55923), (567, 34619), (819, 23967), (1053, 18641), (2457, 7989), (2663, 7371)]