21870959

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 27086400

約数和(自身を除く): 5215441

約数列:

[1, 11, 17, 29, 37, 109, 187, 319, 407, 493, 629, 1073, 1199, 1853, 3161, 4033, 5423, 6919, 11803, 18241, 20383, 34771, 44363, 53737, 68561, 116957, 200651, 591107, 754171, 1286527, 1988269, 21870959]

約数ペア:

[(1, 21870959), (11, 1988269), (17, 1286527), (29, 754171), (37, 591107), (109, 200651), (187, 116957), (319, 68561), (407, 53737), (493, 44363), (629, 34771), (1073, 20383), (1199, 18241), (1853, 11803), (3161, 6919), (4033, 5423)]