646930977

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{983}}^1$

素因数の和:1059

約数の個数: 72

約数和(自身を含む): 1133875008

約数和(自身を除く): 486944031

約数列:

[1, 3, 7, 11, 21, 33, 37, 49, 77, 111, 121, 147, 231, 259, 363, 407, 539, 777, 847, 983, 1221, 1617, 1813, 2541, 2849, 2949, 4477, 5439, 5929, 6881, 8547, 10813, 13431, 17787, 19943, 20643, 31339, 32439, 36371, 48167, 59829, 75691, 94017, 109113, 118943, 144501, 219373, 227073, 254597, 356829, 400081, 529837, 658119, 763791, 832601, 1200243, 1589511, 1782179, 2497803, 2800567, 4400891, 5346537, 5828207, 8401701, 13202673, 17484621, 19603969, 30806237, 58811907, 92418711, 215643659, 646930977]

約数ペア:

[(1, 646930977), (3, 215643659), (7, 92418711), (11, 58811907), (21, 30806237), (33, 19603969), (37, 17484621), (49, 13202673), (77, 8401701), (111, 5828207), (121, 5346537), (147, 4400891), (231, 2800567), (259, 2497803), (363, 1782179), (407, 1589511), (539, 1200243), (777, 832601), (847, 763791), (983, 658119), (1221, 529837), (1617, 400081), (1813, 356829), (2541, 254597), (2849, 227073), (2949, 219373), (4477, 144501), (5439, 118943), (5929, 109113), (6881, 94017), (8547, 75691), (10813, 59829), (13431, 48167), (17787, 36371), (19943, 32439), (20643, 31339)]