20331465

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{607}}^1$

素因数の和:662

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 21693495

約数列:

[1, 3, 5, 7, 11, 15, 21, 29, 33, 35, 55, 77, 87, 105, 145, 165, 203, 231, 319, 385, 435, 607, 609, 957, 1015, 1155, 1595, 1821, 2233, 3035, 3045, 4249, 4785, 6677, 6699, 9105, 11165, 12747, 17603, 20031, 21245, 33385, 33495, 46739, 52809, 63735, 88015, 100155, 123221, 140217, 193633, 233695, 264045, 369663, 580899, 616105, 701085, 968165, 1355431, 1848315, 2904495, 4066293, 6777155, 20331465]

約数ペア:

[(1, 20331465), (3, 6777155), (5, 4066293), (7, 2904495), (11, 1848315), (15, 1355431), (21, 968165), (29, 701085), (33, 616105), (35, 580899), (55, 369663), (77, 264045), (87, 233695), (105, 193633), (145, 140217), (165, 123221), (203, 100155), (231, 88015), (319, 63735), (385, 52809), (435, 46739), (607, 33495), (609, 33385), (957, 21245), (1015, 20031), (1155, 17603), (1595, 12747), (1821, 11165), (2233, 9105), (3035, 6699), (3045, 6677), (4249, 4785)]