261933539

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{389}}^1$

素因数の和:563

約数の個数: 32

約数和(自身を含む): 323481600

約数和(自身を除く): 61548061

約数列:

[1, 7, 29, 31, 107, 203, 217, 389, 749, 899, 2723, 3103, 3317, 6293, 11281, 12059, 21721, 23219, 41623, 78967, 84413, 96193, 291361, 349711, 673351, 1207067, 1290313, 2447977, 8449469, 9032191, 37419077, 261933539]

約数ペア:

[(1, 261933539), (7, 37419077), (29, 9032191), (31, 8449469), (107, 2447977), (203, 1290313), (217, 1207067), (389, 673351), (749, 349711), (899, 291361), (2723, 96193), (3103, 84413), (3317, 78967), (6293, 41623), (11281, 23219), (12059, 21721)]