1396404891

素因数分解:

$3^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 2399879664

約数和(自身を除く): 1003474773

約数列:

[1, 3, 7, 9, 21, 49, 63, 101, 107, 147, 293, 303, 321, 441, 707, 749, 879, 909, 963, 2051, 2121, 2247, 2637, 4949, 5243, 6153, 6363, 6741, 10807, 14357, 14847, 15729, 18459, 29593, 31351, 32421, 43071, 44541, 47187, 75649, 88779, 94053, 97263, 129213, 207151, 219457, 226947, 266337, 282159, 529543, 621453, 658371, 680841, 1450057, 1536199, 1588629, 1864359, 1975113, 3166451, 4350171, 4608597, 4765887, 9499353, 13050513, 13825791, 22165157, 28498059, 66495471, 155156099, 199486413, 465468297, 1396404891]

約数ペア:

[(1, 1396404891), (3, 465468297), (7, 199486413), (9, 155156099), (21, 66495471), (49, 28498059), (63, 22165157), (101, 13825791), (107, 13050513), (147, 9499353), (293, 4765887), (303, 4608597), (321, 4350171), (441, 3166451), (707, 1975113), (749, 1864359), (879, 1588629), (909, 1536199), (963, 1450057), (2051, 680841), (2121, 658371), (2247, 621453), (2637, 529543), (4949, 282159), (5243, 266337), (6153, 226947), (6363, 219457), (6741, 207151), (10807, 129213), (14357, 97263), (14847, 94053), (15729, 88779), (18459, 75649), (29593, 47187), (31351, 44541), (32421, 43071)]