19986538

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{6353}}^1$

素因数の和:6390

約数の個数: 24

約数和(自身を含む): 35493444

約数和(自身を除く): 15506906

約数列:

[1, 2, 11, 13, 22, 26, 121, 143, 242, 286, 1573, 3146, 6353, 12706, 69883, 82589, 139766, 165178, 768713, 908479, 1537426, 1816958, 9993269, 19986538]

約数ペア:

[(1, 19986538), (2, 9993269), (11, 1816958), (13, 1537426), (22, 908479), (26, 768713), (121, 165178), (143, 139766), (242, 82589), (286, 69883), (1573, 12706), (3146, 6353)]