21209424

素因数分解:

$2^4\times 3^1\times {\mathrm{131}}^1\times {\mathrm{3373}}^1$

素因数の和:3515

約数の個数: 40

約数和(自身を含む): 55225632

約数和(自身を除く): 34016208

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 131, 262, 393, 524, 786, 1048, 1572, 2096, 3144, 3373, 6288, 6746, 10119, 13492, 20238, 26984, 40476, 53968, 80952, 161904, 441863, 883726, 1325589, 1767452, 2651178, 3534904, 5302356, 7069808, 10604712, 21209424]

約数ペア:

[(1, 21209424), (2, 10604712), (3, 7069808), (4, 5302356), (6, 3534904), (8, 2651178), (12, 1767452), (16, 1325589), (24, 883726), (48, 441863), (131, 161904), (262, 80952), (393, 53968), (524, 40476), (786, 26984), (1048, 20238), (1572, 13492), (2096, 10119), (3144, 6746), (3373, 6288)]