20180867841

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{365377}}^1$

素因数の和:365438

約数の個数: 36

約数和(自身を含む): 32574910212

約数和(自身を除く): 12394042371

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 361, 969, 1083, 2907, 3249, 6137, 18411, 55233, 365377, 1096131, 3288393, 6211409, 6942163, 18634227, 20826489, 55902681, 62479467, 118016771, 131901097, 354050313, 395703291, 1062150939, 1187109873, 2242318649, 6726955947, 20180867841]

約数ペア:

[(1, 20180867841), (3, 6726955947), (9, 2242318649), (17, 1187109873), (19, 1062150939), (51, 395703291), (57, 354050313), (153, 131901097), (171, 118016771), (323, 62479467), (361, 55902681), (969, 20826489), (1083, 18634227), (2907, 6942163), (3249, 6211409), (6137, 3288393), (18411, 1096131), (55233, 365377)]