991394721918

素因数分解:

$2^1\times 3^3\times {\mathrm{131363}}^1\times {\mathrm{139759}}^1$

素因数の和:271133

約数の個数: 32

約数和(自身を含む): 2203131916800

約数和(自身を除く): 1211737194882

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 131363, 139759, 262726, 279518, 394089, 419277, 788178, 838554, 1182267, 1257831, 2364534, 2515662, 3546801, 3773493, 7093602, 7546986, 18359161517, 36718323034, 55077484551, 110154969102, 165232453653, 330464907306, 495697360959, 991394721918]

約数ペア:

[(1, 991394721918), (2, 495697360959), (3, 330464907306), (6, 165232453653), (9, 110154969102), (18, 55077484551), (27, 36718323034), (54, 18359161517), (131363, 7546986), (139759, 7093602), (262726, 3773493), (279518, 3546801), (394089, 2515662), (419277, 2364534), (788178, 1257831), (838554, 1182267)]