21311565

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2437}}^1$

素因数の和:2509

約数の個数: 32

約数和(自身を含む): 37915776

約数和(自身を除く): 16604211

約数列:

[1, 3, 5, 11, 15, 33, 53, 55, 159, 165, 265, 583, 795, 1749, 2437, 2915, 7311, 8745, 12185, 26807, 36555, 80421, 129161, 134035, 387483, 402105, 645805, 1420771, 1937415, 4262313, 7103855, 21311565]

約数ペア:

[(1, 21311565), (3, 7103855), (5, 4262313), (11, 1937415), (15, 1420771), (33, 645805), (53, 402105), (55, 387483), (159, 134035), (165, 129161), (265, 80421), (583, 36555), (795, 26807), (1749, 12185), (2437, 8745), (2915, 7311)]