20986074

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 49639680

約数和(自身を除く): 28653606

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 61, 69, 122, 138, 183, 207, 277, 366, 414, 549, 554, 621, 831, 1098, 1242, 1403, 1647, 1662, 2493, 2806, 3294, 4209, 4986, 6371, 7479, 8418, 12627, 12742, 14958, 16897, 19113, 25254, 33794, 37881, 38226, 50691, 57339, 75762, 101382, 114678, 152073, 172017, 304146, 344034, 388631, 456219, 777262, 912438, 1165893, 2331786, 3497679, 6995358, 10493037, 20986074]

約数ペア:

[(1, 20986074), (2, 10493037), (3, 6995358), (6, 3497679), (9, 2331786), (18, 1165893), (23, 912438), (27, 777262), (46, 456219), (54, 388631), (61, 344034), (69, 304146), (122, 172017), (138, 152073), (183, 114678), (207, 101382), (277, 75762), (366, 57339), (414, 50691), (549, 38226), (554, 37881), (621, 33794), (831, 25254), (1098, 19113), (1242, 16897), (1403, 14958), (1647, 12742), (1662, 12627), (2493, 8418), (2806, 7479), (3294, 6371), (4209, 4986)]